10865964816 has 90 divisors (see below), whose sum is σ = 35374467102. Its totient is φ = 3104559360.

The previous prime is 10865964799. The next prime is 10865964821. The reversal of 10865964816 is 61846956801.

10865964816 is a `hidden beast` number, since 1 + 0 + 8 + 6 + 596 + 48 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6790419216 + 4075545600 = 82404^2 + 63840^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 762925 + ... + 777036.

Almost surely, 2^10865964816 is an apocalyptic number.

10865964816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10865964816 is an abundant number, since it is smaller than the sum of its proper divisors (24508502286).

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

10865964816 is a wasteful number, since it uses less digits than its factorization.

10865964816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539989 (or 1539973 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 10865964816 in words is "ten billion, eight hundred sixty-five million, nine hundred sixty-four thousand, eight hundred sixteen".