20117504772243 has 24 divisors (see below), whose sum is σ = 29359445094720. Its totient is φ = 13273536774960.

The previous prime is 20117504772229. The next prime is 20117504772251. The reversal of 20117504772243 is 34227740571102.

20117504772243 is a `hidden beast` number, since 2 + 0 + 1 + 17 + 504 + 77 + 22 + 43 = 666.

It is not a de Polignac number, because 20117504772243 - 2¹³ = 20117504764051 is a prime.

It is a super-2 number, since 2×20117504772243² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20117504772283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29251521 + ... + 29931362.

It is an arithmetic number, because the mean of its divisors is an integer number (1223310212280).

Almost surely, 2^{20117504772243} is an apocalyptic number.

20117504772243 is a deficient number, since it is larger than the sum of its proper divisors (9241940322477).

20117504772243 is a wasteful number, since it uses less digits than its factorization.

20117504772243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59183279 (or 59183276 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 20117504772243 in words is "twenty trillion, one hundred seventeen billion, five hundred four million, seven hundred seventy-two thousand, two hundred forty-three".