20056616 has 16 divisors (see below), whose sum is σ = 37679040. Its totient is φ = 10008880.

The previous prime is 20056607. The next prime is 20056669. The reversal of 20056616 is 61665002.

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, 2561 + ... + 6831.

It is an arithmetic number, because the mean of its divisors is an integer number (2354940).

Almost surely, 2^20056616 is an apocalyptic number.

It is an amenable number.

20056616 is a deficient number, since it is larger than the sum of its proper divisors (17622424).

20056616 is a wasteful number, since it uses less digits than its factorization.

20056616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864 (or 4860 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 20056616 is about 4478.4613429168. The cubic root of 20056616 is about 271.6976527986.

The spelling of 20056616 in words is "twenty million, fifty-six thousand, six hundred sixteen".