89436664320 has 160 divisors (see below), whose sum is σ = 286086385728. Its totient is φ = 23835721728.

The previous prime is 89436664319. The next prime is 89436664357. The reversal of 89436664320 is 2346663498.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×89436664320² (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 15 ways as a sum of consecutive naturals, for example, 23552662 + ... + 23556458.

Almost surely, 2^89436664320 is an apocalyptic number.

89436664320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89436664320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143043192864).

89436664320 is an abundant number, since it is smaller than the sum of its proper divisors (196649721408).

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

89436664320 is a wasteful number, since it uses less digits than its factorization.

89436664320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6890 (or 6874 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 51.

The spelling of 89436664320 in words is "eighty-nine billion, four hundred thirty-six million, six hundred sixty-four thousand, three hundred twenty".