20813174937120 has 192 divisors, whose sum is σ = 69349154482944. Its totient is φ = 5236143390720.

The previous prime is 20813174937103. The next prime is 20813174937151. The reversal of 20813174937120 is 2173947131802.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 20813174937120.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12106761 + ... + 13718600.

It is an arithmetic number, because the mean of its divisors is an integer number (361193512932).

Almost surely, 2^{20813174937120} is an apocalyptic number.

20813174937120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20813174937120 is an abundant number, since it is smaller than the sum of its proper divisors (48535979545824).

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

20813174937120 is a wasteful number, since it uses less digits than its factorization.

20813174937120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25825475 (or 25825467 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 20813174937120 in words is "twenty trillion, eight hundred thirteen billion, one hundred seventy-four million, nine hundred thirty-seven thousand, one hundred twenty".