166536164 has 6 divisors (see below), whose sum is σ = 291438294. Its totient is φ = 83268080.

The previous prime is 166536163. The next prime is 166536193. The reversal of 166536164 is 461635661.

It can be written as a sum of positive squares in only one way, i.e., 163840000 + 2696164 = 12800^2 + 1642^2 .

It is not an unprimeable number, because it can be changed into a prime (166536163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20817017 + ... + 20817024.

It is an arithmetic number, because the mean of its divisors is an integer number (48573049).

Almost surely, 2^166536164 is an apocalyptic number.

It is an amenable number.

166536164 is a deficient number, since it is larger than the sum of its proper divisors (124902130).

166536164 is a wasteful number, since it uses less digits than its factorization.

166536164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41634045 (or 41634043 counting only the distinct ones).

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

The square root of 166536164 is about 12904.8891510156. The cubic root of 166536164 is about 550.1775338725.

The spelling of 166536164 in words is "one hundred sixty-six million, five hundred thirty-six thousand, one hundred sixty-four".