157909866158 has 16 divisors (see below), whose sum is σ = 262254651264. Its totient is φ = 70705909560.

The previous prime is 157909866157. The next prime is 157909866209. The reversal of 157909866158 is 851668909751.

It is a junction number, because it is equal to n+sod(n) for n = 157909866094 and 157909866103.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53563610 + ... + 53566557.

It is an arithmetic number, because the mean of its divisors is an integer number (16390915704).

Almost surely, 2^157909866158 is an apocalyptic number.

157909866158 is a deficient number, since it is larger than the sum of its proper divisors (104344785106).

157909866158 is a wasteful number, since it uses less digits than its factorization.

157909866158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107130247.

The product of its (nonzero) digits is 32659200, while the sum is 65.

The spelling of 157909866158 in words is "one hundred fifty-seven billion, nine hundred nine million, eight hundred sixty-six thousand, one hundred fifty-eight".