166316475 has 48 divisors (see below), whose sum is σ = 303091712. Its totient is φ = 79954560.

The previous prime is 166316453. The next prime is 166316477. The reversal of 166316475 is 574613661.

It is not a de Polignac number, because 166316475 - 2¹¹ = 166314427 is a prime.

It is a super-2 number, since 2×166316475² = 55322339712851250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166316477) 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 47 ways as a sum of consecutive naturals, for example, 39942 + ... + 43908.

Almost surely, 2^166316475 is an apocalyptic number.

166316475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166316475 is a deficient number, since it is larger than the sum of its proper divisors (136775237).

166316475 is a wasteful number, since it uses less digits than its factorization.

166316475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036 (or 4031 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 166316475 is about 12896.3744905303. The cubic root of 166316475 is about 549.9355020786.

The spelling of 166316475 in words is "one hundred sixty-six million, three hundred sixteen thousand, four hundred seventy-five".