158715166 has 4 divisors (see below), whose sum is σ = 238072752. Its totient is φ = 79357582.

The previous prime is 158715149. The next prime is 158715169. The reversal of 158715166 is 661517851.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158715169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39678790 + ... + 39678793.

It is an arithmetic number, because the mean of its divisors is an integer number (59518188).

Almost surely, 2^158715166 is an apocalyptic number.

158715166 is a deficient number, since it is larger than the sum of its proper divisors (79357586).

158715166 is an equidigital number, since it uses as much as digits as its factorization.

158715166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79357585.

The product of its digits is 50400, while the sum is 40.

The square root of 158715166 is about 12598.2207473913. The cubic root of 158715166 is about 541.4264594686.

The spelling of 158715166 in words is "one hundred fifty-eight million, seven hundred fifteen thousand, one hundred sixty-six".