166158664 has 16 divisors (see below), whose sum is σ = 356054400. Its totient is φ = 71210832.

The previous prime is 166158659. The next prime is 166158683. The reversal of 166158664 is 466851661.

It is a self number, because there is not a number n which added to its sum of digits gives 166158664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1483504 + ... + 1483615.

It is an arithmetic number, because the mean of its divisors is an integer number (22253400).

Almost surely, 2^166158664 is an apocalyptic number.

166158664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

166158664 is an abundant number, since it is smaller than the sum of its proper divisors (189895736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166158664 is a wasteful number, since it uses less digits than its factorization.

166158664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967132 (or 2967128 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 166158664 is about 12890.2546134667. The cubic root of 166158664 is about 549.7615098243.

The spelling of 166158664 in words is "one hundred sixty-six million, one hundred fifty-eight thousand, six hundred sixty-four".