99015566 has 32 divisors (see below), whose sum is σ = 164052000. Its totient is φ = 44542080.

The previous prime is 99015557. The next prime is 99015569. The reversal of 99015566 is 66551099.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 236105 + ... + 236523.

It is an arithmetic number, because the mean of its divisors is an integer number (5126625).

Almost surely, 2^99015566 is an apocalyptic number.

99015566 is a deficient number, since it is larger than the sum of its proper divisors (65036434).

99015566 is a wasteful number, since it uses less digits than its factorization.

99015566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

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

The square root of 99015566 is about 9950.6565612526. The cubic root of 99015566 is about 462.6307452126.

The spelling of 99015566 in words is "ninety-nine million, fifteen thousand, five hundred sixty-six".