99015565 has 16 divisors (see below), whose sum is σ = 137246400. Its totient is φ = 67774720.

The previous prime is 99015557. The next prime is 99015569. The reversal of 99015565 is 56551099.

It is not a de Polignac number, because 99015565 - 2³ = 99015557 is a prime.

It is a super-2 number, since 2×99015565² = 19608164224538450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99015569) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 52015 + ... + 53884.

It is an arithmetic number, because the mean of its divisors is an integer number (8577900).

Almost surely, 2^99015565 is an apocalyptic number.

It is an amenable number.

99015565 is a deficient number, since it is larger than the sum of its proper divisors (38230835).

99015565 is a wasteful number, since it uses less digits than its factorization.

99015565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105932.

The product of its (nonzero) digits is 60750, while the sum is 40.

The square root of 99015565 is about 9950.6565110047. The cubic root of 99015565 is about 462.6307436552.

The spelling of 99015565 in words is "ninety-nine million, fifteen thousand, five hundred sixty-five".