99017571392 has 56 divisors (see below), whose sum is σ = 201353705496. Its totient is φ = 48293593088.

The previous prime is 99017571383. The next prime is 99017571407. The reversal of 99017571392 is 29317571099.

It can be written as a sum of positive squares in 4 ways, for example, as 35545823296 + 63471748096 = 188536^2 + 251936^2 .

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502448 + ... + 671184.

Almost surely, 2^99017571392 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 99017571392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100676852748).

99017571392 is an abundant number, since it is smaller than the sum of its proper divisors (102336134104).

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

99017571392 is a wasteful number, since it uses less digits than its factorization.

99017571392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168975 (or 168965 counting only the distinct ones).

The product of its (nonzero) digits is 1071630, while the sum is 53.

The spelling of 99017571392 in words is "ninety-nine billion, seventeen million, five hundred seventy-one thousand, three hundred ninety-two".