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65380030709760 = 2153651324179
BaseRepresentation
bin11101101110110011110011…
…00000011000000000000000
322120111021021202022222000000
432313121321200120000000
532032141300330203020
6351015101012000000
716525360052430534
oct1667317140300000
9276437252288000
1065380030709760
1119917573977708
1273bb108000000
132a63406069200
1412205a60b1bc4
15785a409bb090
hex3b7679818000

65380030709760 has 2688 divisors, whose sum is σ = 264262222526400. Its totient is φ = 15502273413120.

The previous prime is 65380030709743. The next prime is 65380030709887. The reversal of 65380030709760 is 6790703008356.

65380030709760 is a `hidden beast` number, since 6 + 538 + 0 + 0 + 30 + 7 + 0 + 9 + 76 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 65380030709697 and 65380030709706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 827595325401 + ... + 827595325479.

Almost surely, 265380030709760 is an apocalyptic number.

65380030709760 is a gapful number since it is divisible by the number (60) 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 65380030709760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132131111263200).

65380030709760 is an abundant number, since it is smaller than the sum of its proper divisors (198882191816640).

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

65380030709760 is an frugal number, since it uses more digits than its factorization.

65380030709760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 65380030709760 in words is "sixty-five trillion, three hundred eighty billion, thirty million, seven hundred nine thousand, seven hundred sixty".