166172536 has 16 divisors (see below), whose sum is σ = 311711400. Its totient is φ = 83049504.

The previous prime is 166172533. The next prime is 166172561. The reversal of 166172536 is 635271661.

166172536 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166172536² = 55226623441342592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166172495 and 166172504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166172533) 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 3 ways as a sum of consecutive naturals, for example, 29430 + ... + 34618.

Almost surely, 2^166172536 is an apocalyptic number.

It is an amenable number.

166172536 is a deficient number, since it is larger than the sum of its proper divisors (145538864).

166172536 is a wasteful number, since it uses less digits than its factorization.

166172536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9198 (or 9194 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 166172536 is about 12890.7926831518. The cubic root of 166172536 is about 549.7768086142.

The spelling of 166172536 in words is "one hundred sixty-six million, one hundred seventy-two thousand, five hundred thirty-six".