89800664816 has 90 divisors (see below), whose sum is σ = 187787692872. Its totient is φ = 41584273920.

The previous prime is 89800664803. The next prime is 89800664827. The reversal of 89800664816 is 61846600898.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 171702731 + ... + 171703253.

Almost surely, 2^89800664816 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 89800664816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93893846436).

89800664816 is an abundant number, since it is smaller than the sum of its proper divisors (97987028056).

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

89800664816 is an equidigital number, since it uses as much as digits as its factorization.

89800664816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 89800664816 in words is "eighty-nine billion, eight hundred million, six hundred sixty-four thousand, eight hundred sixteen".