20117504772315 has 64 divisors (see below), whose sum is σ = 36313147036800. Its totient is φ = 10565204170752.

The previous prime is 20117504772283. The next prime is 20117504772349. The reversal of 20117504772315 is 51327740571102.

20117504772315 is a `hidden beast` number, since 2 + 0 + 1 + 175 + 0 + 477 + 2 + 3 + 1 + 5 = 666.

It is not a de Polignac number, because 20117504772315 - 2⁵ = 20117504772283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4426281 + ... + 7734789.

It is an arithmetic number, because the mean of its divisors is an integer number (567392922450).

Almost surely, 2^{20117504772315} is an apocalyptic number.

20117504772315 is a deficient number, since it is larger than the sum of its proper divisors (16195642264485).

20117504772315 is a wasteful number, since it uses less digits than its factorization.

20117504772315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309213 (or 3309207 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The spelling of 20117504772315 in words is "twenty trillion, one hundred seventeen billion, five hundred four million, seven hundred seventy-two thousand, three hundred fifteen".