157166165 has 8 divisors (see below), whose sum is σ = 203107128. Its totient is φ = 116061120.

The previous prime is 157166159. The next prime is 157166197. The reversal of 157166165 is 561661751.

157166165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 34000561 + 123165604 = 5831^2 + 11098^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157166165 - 2¹⁴ = 157149781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208906 + ... + 1209035.

It is an arithmetic number, because the mean of its divisors is an integer number (25388391).

Almost surely, 2^157166165 is an apocalyptic number.

It is an amenable number.

157166165 is a deficient number, since it is larger than the sum of its proper divisors (45940963).

157166165 is a wasteful number, since it uses less digits than its factorization.

157166165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417959.

The product of its digits is 37800, while the sum is 38.

The square root of 157166165 is about 12536.5930379828. The cubic root of 157166165 is about 539.6593244429.

The spelling of 157166165 in words is "one hundred fifty-seven million, one hundred sixty-six thousand, one hundred sixty-five".