20934857179056 has 40 divisors (see below), whose sum is σ = 55946601085680. Its totient is φ = 6737655183616.

The previous prime is 20934857179013. The next prime is 20934857179081. The reversal of 20934857179056 is 65097175843902.

It is a happy number.

It is a super-2 number, since 2×20934857179056² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7519703055 + ... + 7519705838.

It is an arithmetic number, because the mean of its divisors is an integer number (1398665027142).

It is a 1-persistent number, because it is pandigital, but 2⋅20934857179056 = 41869714358112 is not.

Almost surely, 2^{20934857179056} is an apocalyptic number.

It is an amenable number.

20934857179056 is an abundant number, since it is smaller than the sum of its proper divisors (35011743906624).

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

20934857179056 is a wasteful number, since it uses less digits than its factorization.

20934857179056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15039408933 (or 15039408927 counting only the distinct ones).

The product of its (nonzero) digits is 114307200, while the sum is 66.

The spelling of 20934857179056 in words is "twenty trillion, nine hundred thirty-four billion, eight hundred fifty-seven million, one hundred seventy-nine thousand, fifty-six".