166906833 has 16 divisors (see below), whose sum is σ = 238069440. Its totient is φ = 103643136.

The previous prime is 166906819. The next prime is 166906853. The reversal of 166906833 is 338609661.

It is not a de Polignac number, because 166906833 - 2⁵ = 166906801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166906813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11923 + ... + 21816.

It is an arithmetic number, because the mean of its divisors is an integer number (14879340).

Almost surely, 2^166906833 is an apocalyptic number.

It is an amenable number.

166906833 is a deficient number, since it is larger than the sum of its proper divisors (71162607).

166906833 is a wasteful number, since it uses less digits than its factorization.

166906833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33856.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 166906833 is about 12919.2427409659. The cubic root of 166906833 is about 550.5854185343.

The spelling of 166906833 in words is "one hundred sixty-six million, nine hundred six thousand, eight hundred thirty-three".