89971017164 has 12 divisors (see below), whose sum is σ = 179942034384. Its totient is φ = 38559007344.

The previous prime is 89971017137. The next prime is 89971017193. The reversal of 89971017164 is 46171017998.

It is a happy number.

89971017164 is an admirable 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, 1606625279 + ... + 1606625334.

It is an arithmetic number, because the mean of its divisors is an integer number (14995169532).

Almost surely, 2^89971017164 is an apocalyptic number.

It is an amenable number.

89971017164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

89971017164 is a wasteful number, since it uses less digits than its factorization.

89971017164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213250624 (or 3213250622 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 53.

The spelling of 89971017164 in words is "eighty-nine billion, nine hundred seventy-one million, seventeen thousand, one hundred sixty-four".