20157011765011 has 32 divisors (see below), whose sum is σ = 22394421504000. Its totient is φ = 18140122044000.

The previous prime is 20157011764997. The next prime is 20157011765053. The reversal of 20157011765011 is 11056711075102.

It is a happy number.

It is not a de Polignac number, because 20157011765011 - 2²⁷ = 20156877547283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20157011765911) 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, 1397940760 + ... + 1397955178.

It is an arithmetic number, because the mean of its divisors is an integer number (699825672000).

Almost surely, 2^{20157011765011} is an apocalyptic number.

20157011765011 is a deficient number, since it is larger than the sum of its proper divisors (2237409738989).

20157011765011 is a wasteful number, since it uses less digits than its factorization.

20157011765011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24952 (or 24930 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 37.

The spelling of 20157011765011 in words is "twenty trillion, one hundred fifty-seven billion, eleven million, seven hundred sixty-five thousand, eleven".