18256608696 has 16 divisors (see below), whose sum is σ = 45641521800. Its totient is φ = 6085536224.

The previous prime is 18256608673. The next prime is 18256608719. The reversal of 18256608696 is 69680665281.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18256608673) and next prime (18256608719).

It is a super-2 number, since 2×18256608696² (a number of 21 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 3 ways as a sum of consecutive naturals, for example, 380345991 + ... + 380346038.

Almost surely, 2^18256608696 is an apocalyptic number.

It is an amenable number.

18256608696 is an abundant number, since it is smaller than the sum of its proper divisors (27384913104).

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

18256608696 is a wasteful number, since it uses less digits than its factorization.

18256608696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760692038 (or 760692034 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 18256608696 in words is "eighteen billion, two hundred fifty-six million, six hundred eight thousand, six hundred ninety-six".