20013657036016 has 80 divisors (see below), whose sum is σ = 45584452408320. Its totient is φ = 8334391783680.

The previous prime is 20013657036013. The next prime is 20013657036019. The reversal of 20013657036016 is 61063075631002.

It is an interprime number because it is at equal distance from previous prime (20013657036013) and next prime (20013657036019).

It is a self number, because there is not a number n which added to its sum of digits gives 20013657036016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013657036013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12944515 + ... + 14407906.

It is an arithmetic number, because the mean of its divisors is an integer number (569805655104).

Almost surely, 2^{20013657036016} is an apocalyptic number.

It is an amenable number.

20013657036016 is an abundant number, since it is smaller than the sum of its proper divisors (25570795372304).

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

20013657036016 is a wasteful number, since it uses less digits than its factorization.

20013657036016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27352622 (or 27352616 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 20013657036016 in words is "twenty trillion, thirteen billion, six hundred fifty-seven million, thirty-six thousand, sixteen".