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12667920960 = 2635101130651
BaseRepresentation
bin10111100110001000…
…10010001001000000
31012200211221001122210
423303010102021000
5201420441432320
65453005302120
7625631360112
oct136304221100
935624831583
1012667920960
115410790572
122556564940
13126b651826
148826053b2
154e22080e0
hex2f3112240

12667920960 has 112 divisors (see below), whose sum is σ = 40619184192. Its totient is φ = 3344640000.

The previous prime is 12667920929. The next prime is 12667920961. The reversal of 12667920960 is 6902976621.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (12667920961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31635 + ... + 162285.

Almost surely, 212667920960 is an apocalyptic number.

12667920960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12667920960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20309592096).

12667920960 is an abundant number, since it is smaller than the sum of its proper divisors (27951263232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12667920960 is a wasteful number, since it uses less digits than its factorization.

12667920960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130772 (or 130762 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 12667920960 in words is "twelve billion, six hundred sixty-seven million, nine hundred twenty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 101 120 160 192 202 240 303 320 404 480 505 606 808 960 1010 1212 1515 1616 2020 2424 3030 3232 4040 4848 6060 6464 8080 9696 12120 16160 19392 24240 32320 48480 96960 130651 261302 391953 522604 653255 783906 1045208 1306510 1567812 1959765 2090416 2613020 3135624 3919530 4180832 5226040 6271248 7839060 8361664 10452080 12542496 13195751 15678120 20904160 25084992 26391502 31356240 39587253 41808320 52783004 62712480 65978755 79174506 105566008 125424960 131957510 158349012 197936265 211132016 263915020 316698024 395872530 422264032 527830040 633396048 791745060 844528064 1055660080 1266792096 1583490120 2111320160 2533584192 3166980240 4222640320 6333960480 12667920960