15663164 has 24 divisors (see below), whose sum is σ = 30148608. Its totient is φ = 7061040.

The previous prime is 15663157. The next prime is 15663203. The reversal of 15663164 is 46136651.

It is a self number, because there is not a number n which added to its sum of digits gives 15663164.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4187 + ... + 6989.

It is an arithmetic number, because the mean of its divisors is an integer number (1256192).

Almost surely, 2^15663164 is an apocalyptic number.

It is an amenable number.

15663164 is a deficient number, since it is larger than the sum of its proper divisors (14485444).

15663164 is a wasteful number, since it uses less digits than its factorization.

15663164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945 (or 2943 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 15663164 is about 3957.6715376595. The cubic root of 15663164 is about 250.2033758415.

The spelling of 15663164 in words is "fifteen million, six hundred sixty-three thousand, one hundred sixty-four".