157107126861 has 12 divisors (see below), whose sum is σ = 226973796192. Its totient is φ = 104719032456.

The previous prime is 157107126853. The next prime is 157107126877. The reversal of 157107126861 is 168621701751.

157107126861 is a `hidden beast` number, since 1 + 571 + 0 + 7 + 12 + 6 + 8 + 61 = 666.

It is not a de Polignac number, because 157107126861 - 2³ = 157107126853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157107126851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1535361 + ... + 1634486.

It is an arithmetic number, because the mean of its divisors is an integer number (18914483016).

Almost surely, 2^157107126861 is an apocalyptic number.

It is an amenable number.

157107126861 is a deficient number, since it is larger than the sum of its proper divisors (69866669331).

157107126861 is a wasteful number, since it uses less digits than its factorization.

157107126861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175360 (or 3175357 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The spelling of 157107126861 in words is "one hundred fifty-seven billion, one hundred seven million, one hundred twenty-six thousand, eight hundred sixty-one".