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168215900160 = 2123571131237
BaseRepresentation
bin1001110010101001110…
…0101111000000000000
3121002012020220010020110
42130222130233000000
510224001232301120
6205135522311320
715103355362620
oct2345234570000
9532166803213
10168215900160
11653815435a0
12287271b8540
1312b2a4432c9
1481dab3c880
154597dd32e0
hex272a72f000

168215900160 has 1248 divisors, whose sum is σ = 712118462976. Its totient is φ = 32912179200.

The previous prime is 168215900141. The next prime is 168215900161. The reversal of 168215900160 is 61009512861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168215900161) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4546375662 + ... + 4546375698.

Almost surely, 2168215900160 is an apocalyptic number.

168215900160 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 168215900160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356059231488).

168215900160 is an abundant number, since it is smaller than the sum of its proper divisors (543902562816).

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

168215900160 is a wasteful number, since it uses less digits than its factorization.

168215900160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The spelling of 168215900160 in words is "one hundred sixty-eight billion, two hundred fifteen million, nine hundred thousand, one hundred sixty".