20005157554364 has 48 divisors (see below), whose sum is σ = 37451620442880. Its totient is φ = 9329344442880.

The previous prime is 20005157554301. The next prime is 20005157554381. The reversal of 20005157554364 is 46345575150002.

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, 2990897 + ... + 6996840.

It is an arithmetic number, because the mean of its divisors is an integer number (780242092560).

Almost surely, 2^{20005157554364} is an apocalyptic number.

It is an amenable number.

20005157554364 is a deficient number, since it is larger than the sum of its proper divisors (17446462888516).

20005157554364 is a wasteful number, since it uses less digits than its factorization.

20005157554364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9988358 (or 9988356 counting only the distinct ones).

The product of its (nonzero) digits is 2520000, while the sum is 47.

The spelling of 20005157554364 in words is "twenty trillion, five billion, one hundred fifty-seven million, five hundred fifty-four thousand, three hundred sixty-four".