20157554627 has 16 divisors (see below), whose sum is σ = 23747281920. Its totient is φ = 16752219648.

The previous prime is 20157554617. The next prime is 20157554647. The reversal of 20157554627 is 72645575102.

It is a cyclic number.

It is not a de Polignac number, because 20157554627 - 2⁴ = 20157554611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20157554617) 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, 251102 + ... + 321507.

It is an arithmetic number, because the mean of its divisors is an integer number (1484205120).

Almost surely, 2^20157554627 is an apocalyptic number.

20157554627 is a deficient number, since it is larger than the sum of its proper divisors (3589727293).

20157554627 is a wasteful number, since it uses less digits than its factorization.

20157554627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572770.

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 20157554627 in words is "twenty billion, one hundred fifty-seven million, five hundred fifty-four thousand, six hundred twenty-seven".