20045745064160 has 96 divisors (see below), whose sum is σ = 47496850632000. Its totient is φ = 7994825072640.

The previous prime is 20045745064141. The next prime is 20045745064181. The reversal of 20045745064160 is 6146054754002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108709640 + ... + 108893880.

It is an arithmetic number, because the mean of its divisors is an integer number (494758860750).

Almost surely, 2^{20045745064160} is an apocalyptic number.

20045745064160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20045745064160 is an abundant number, since it is smaller than the sum of its proper divisors (27451105567840).

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

20045745064160 is a wasteful number, since it uses less digits than its factorization.

20045745064160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186244 (or 186236 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 20045745064160 in words is "twenty trillion, forty-five billion, seven hundred forty-five million, sixty-four thousand, one hundred sixty".