86256165636 has 81 divisors (see below), whose sum is σ = 225439510023. Its totient is φ = 27806947920.

The previous prime is 86256165617. The next prime is 86256165647. The reversal of 86256165636 is 63656165268.

The square root of 86256165636 is 293694.

It is a perfect power (a square), and thus also a powerful number.

86256165636 is a `hidden beast` number, since 8 + 62 + 5 + 6 + 16 + 563 + 6 = 666.

It is a super-2 number, since 2×86256165636² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 54626295 + ... + 54627873.

Almost surely, 2^86256165636 is an apocalyptic number.

86256165636 is the 293694-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86256165636

86256165636 is an abundant number, since it is smaller than the sum of its proper divisors (139183344387).

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

86256165636 is a wasteful number, since it uses less digits than its factorization.

86256165636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230 (or 1615 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The spelling of 86256165636 in words is "eighty-six billion, two hundred fifty-six million, one hundred sixty-five thousand, six hundred thirty-six".