20157011770623 has 32 divisors (see below), whose sum is σ = 33078480960000. Its totient is φ = 10632171010176.

The previous prime is 20157011770613. The next prime is 20157011770751. The reversal of 20157011770623 is 32607711075102.

It is not a de Polignac number, because 20157011770623 - 2¹⁰ = 20157011769599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20157011770613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36127428 + ... + 36681126.

It is an arithmetic number, because the mean of its divisors is an integer number (1033702530000).

Almost surely, 2^{20157011770623} is an apocalyptic number.

20157011770623 is a deficient number, since it is larger than the sum of its proper divisors (12921469189377).

20157011770623 is a wasteful number, since it uses less digits than its factorization.

20157011770623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687071.

The product of its (nonzero) digits is 123480, while the sum is 42.

The spelling of 20157011770623 in words is "twenty trillion, one hundred fifty-seven billion, eleven million, seven hundred seventy thousand, six hundred twenty-three".