20003516500164 has 24 divisors (see below), whose sum is σ = 46688644390080. Its totient is φ = 6665871325344.

The previous prime is 20003516500153. The next prime is 20003516500171. The reversal of 20003516500164 is 46100561530002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245896144 + ... + 245977479.

It is an arithmetic number, because the mean of its divisors is an integer number (1945360182920).

Almost surely, 2^{20003516500164} is an apocalyptic number.

It is an amenable number.

20003516500164 is an abundant number, since it is smaller than the sum of its proper divisors (26685127889916).

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

20003516500164 is a wasteful number, since it uses less digits than its factorization.

20003516500164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491877019 (or 491877017 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 20003516500164 in words is "twenty trillion, three billion, five hundred sixteen million, five hundred thousand, one hundred sixty-four".