157909866167 has 4 divisors (see below), whose sum is σ = 161582188680. Its totient is φ = 154237543656.

The previous prime is 157909866157. The next prime is 157909866209. The reversal of 157909866167 is 761668909751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157909866167 - 2¹⁰ = 157909865143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157909866157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836161192 + ... + 1836161277.

It is an arithmetic number, because the mean of its divisors is an integer number (40395547170).

Almost surely, 2^157909866167 is an apocalyptic number.

157909866167 is a deficient number, since it is larger than the sum of its proper divisors (3672322513).

157909866167 is an equidigital number, since it uses as much as digits as its factorization.

157909866167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672322512.

The product of its (nonzero) digits is 34292160, while the sum is 65.

The spelling of 157909866167 in words is "one hundred fifty-seven billion, nine hundred nine million, eight hundred sixty-six thousand, one hundred sixty-seven".