20008815474012 has 24 divisors (see below), whose sum is σ = 48193275981312. Its totient is φ = 6454456604400.

The previous prime is 20008815473953. The next prime is 20008815474041. The reversal of 20008815474012 is 21047451880002.

It is a super-2 number, since 2×20008815474012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 26893568814 + ... + 26893569557.

It is an arithmetic number, because the mean of its divisors is an integer number (2008053165888).

Almost surely, 2^{20008815474012} is an apocalyptic number.

It is an amenable number.

20008815474012 is an abundant number, since it is smaller than the sum of its proper divisors (28184460507300).

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

20008815474012 is a wasteful number, since it uses less digits than its factorization.

20008815474012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53787138409 (or 53787138407 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 20008815474012 in words is "twenty trillion, eight billion, eight hundred fifteen million, four hundred seventy-four thousand, twelve".