15616164 has 12 divisors (see below), whose sum is σ = 36437744. Its totient is φ = 5205384.

The previous prime is 15616163. The next prime is 15616171. The reversal of 15616164 is 46161651.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (15616163) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 650662 + ... + 650685.

Almost surely, 2^15616164 is an apocalyptic number.

It is an amenable number.

15616164 is an abundant number, since it is smaller than the sum of its proper divisors (20821580).

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

15616164 is a wasteful number, since it uses less digits than its factorization.

15616164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301354 (or 1301352 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 15616164 is about 3951.7292417371. The cubic root of 15616164 is about 249.9528657807.

It can be divided in two parts, 1 and 5616164, that added together give a palindrome (5616165).

The spelling of 15616164 in words is "fifteen million, six hundred sixteen thousand, one hundred sixty-four".