76532165856 has 144 divisors (see below), whose sum is σ = 227832617376. Its totient is φ = 24322940928.

The previous prime is 76532165797. The next prime is 76532165861. The reversal of 76532165856 is 65856123567.

It is a happy number.

76532165856 is a `hidden beast` number, since 7 + 6 + 53 + 2 + 1 + 6 + 585 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×76532165856² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2054856 + ... + 2091768.

It is an arithmetic number, because the mean of its divisors is an integer number (1582170954).

Almost surely, 2^76532165856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76532165856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113916308688).

76532165856 is an abundant number, since it is smaller than the sum of its proper divisors (151300451520).

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

76532165856 is a wasteful number, since it uses less digits than its factorization.

76532165856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37265 (or 37254 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 54.

The spelling of 76532165856 in words is "seventy-six billion, five hundred thirty-two million, one hundred sixty-five thousand, eight hundred fifty-six".