166949656 has 32 divisors (see below), whose sum is σ = 348894000. Its totient is φ = 74428416.

The previous prime is 166949641. The next prime is 166949659. The reversal of 166949656 is 656949661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166949659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29721 + ... + 34888.

Almost surely, 2^166949656 is an apocalyptic number.

It is an amenable number.

166949656 is an abundant number, since it is smaller than the sum of its proper divisors (181944344).

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

166949656 is a wasteful number, since it uses less digits than its factorization.

166949656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64651 (or 64647 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 52.

The square root of 166949656 is about 12920.8999686554. The cubic root of 166949656 is about 550.6325020934.

The spelling of 166949656 in words is "one hundred sixty-six million, nine hundred forty-nine thousand, six hundred fifty-six".