99156560 has 20 divisors (see below), whose sum is σ = 230539188. Its totient is φ = 39662592.

The previous prime is 99156553. The next prime is 99156593. The reversal of 99156560 is 6565199.

It can be written as a sum of positive squares in 2 ways, for example, as 54051904 + 45104656 = 7352^2 + 6716^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent 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, 619649 + ... + 619808.

Almost surely, 2^99156560 is an apocalyptic number.

It is an amenable number.

99156560 is an abundant number, since it is smaller than the sum of its proper divisors (131382628).

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

99156560 is a wasteful number, since it uses less digits than its factorization.

99156560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239470 (or 1239464 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 99156560 is about 9957.7386991224. The cubic root of 99156560 is about 462.8502299720.

The spelling of 99156560 in words is "ninety-nine million, one hundred fifty-six thousand, five hundred sixty".