20117504772272 has 20 divisors (see below), whose sum is σ = 38978400207096. Its totient is φ = 10058562783360.

The previous prime is 20117504772251. The next prime is 20117504772283. The reversal of 20117504772272 is 27227740571102.

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, 10972853 + ... + 12674324.

Almost surely, 2^{20117504772272} is an apocalyptic number.

It is an amenable number.

20117504772272 is a deficient number, since it is larger than the sum of its proper divisors (18860895434824).

20117504772272 is a wasteful number, since it uses less digits than its factorization.

20117504772272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23700356 (or 23700350 counting only the distinct ones).

The product of its (nonzero) digits is 768320, while the sum is 47.

The spelling of 20117504772272 in words is "twenty trillion, one hundred seventeen billion, five hundred four million, seven hundred seventy-two thousand, two hundred seventy-two".