20344513170664 has 32 divisors (see below), whose sum is σ = 38252787102720. Its totient is φ = 10143774127296.

The previous prime is 20344513170661. The next prime is 20344513170713. The reversal of 20344513170664 is 46607131544302.

It is not an unprimeable number, because it can be changed into a prime (20344513170661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39713257 + ... + 40222279.

It is an arithmetic number, because the mean of its divisors is an integer number (1195399596960).

Almost surely, 2^{20344513170664} is an apocalyptic number.

It is an amenable number.

20344513170664 is a deficient number, since it is larger than the sum of its proper divisors (17908273932056).

20344513170664 is a wasteful number, since it uses less digits than its factorization.

20344513170664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523009 (or 523005 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 20344513170664 in words is "twenty trillion, three hundred forty-four billion, five hundred thirteen million, one hundred seventy thousand, six hundred sixty-four".