89817367656 has 64 divisors (see below), whose sum is σ = 243281016000. Its totient is φ = 27522690048.

The previous prime is 89817367649. The next prime is 89817367667. The reversal of 89817367656 is 65676371898.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2542231 + ... + 2577318.

It is an arithmetic number, because the mean of its divisors is an integer number (3801265875).

Almost surely, 2^89817367656 is an apocalyptic number.

89817367656 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

89817367656 is an abundant number, since it is smaller than the sum of its proper divisors (153463648344).

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

89817367656 is a wasteful number, since it uses less digits than its factorization.

89817367656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5119618 (or 5119614 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 66.

The spelling of 89817367656 in words is "eighty-nine billion, eight hundred seventeen million, three hundred sixty-seven thousand, six hundred fifty-six".