166316465 has 16 divisors (see below), whose sum is σ = 228310272. Its totient is φ = 113936064.

The previous prime is 166316453. The next prime is 166316477. The reversal of 166316465 is 564613661.

It is an interprime number because it is at equal distance from previous prime (166316453) and next prime (166316477).

It is a cyclic number.

It is not a de Polignac number, because 166316465 - 2¹⁴ = 166300081 is a prime.

It is a super-2 number, since 2×166316465² = 55322333060192450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54767 + ... + 57723.

It is an arithmetic number, because the mean of its divisors is an integer number (14269392).

Almost surely, 2^166316465 is an apocalyptic number.

It is an amenable number.

166316465 is a deficient number, since it is larger than the sum of its proper divisors (61993807).

166316465 is a wasteful number, since it uses less digits than its factorization.

166316465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576.

The product of its digits is 77760, while the sum is 38.

The square root of 166316465 is about 12896.3741028244. The cubic root of 166316465 is about 549.9354910567.

The spelling of 166316465 in words is "one hundred sixty-six million, three hundred sixteen thousand, four hundred sixty-five".