157138406667 has 12 divisors (see below), whose sum is σ = 247612034904. Its totient is φ = 95235397920.

The previous prime is 157138406627. The next prime is 157138406707. The reversal of 157138406667 is 766604831751.

It is an interprime number because it is at equal distance from previous prime (157138406627) and next prime (157138406707).

It is not a de Polignac number, because 157138406667 - 2⁶ = 157138406603 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (157138406627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 793628218 + ... + 793628415.

It is an arithmetic number, because the mean of its divisors is an integer number (20634336242).

Almost surely, 2^157138406667 is an apocalyptic number.

157138406667 is a deficient number, since it is larger than the sum of its proper divisors (90473628237).

157138406667 is a wasteful number, since it uses less digits than its factorization.

157138406667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587256650 (or 1587256647 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 157138406667 in words is "one hundred fifty-seven billion, one hundred thirty-eight million, four hundred six thousand, six hundred sixty-seven".