166950864 has 30 divisors (see below), whose sum is σ = 467230946. Its totient is φ = 55650240.

The previous prime is 166950809. The next prime is 166950877. The reversal of 166950864 is 468059661.

It can be written as a sum of positive squares in only one way, i.e., 125888400 + 41062464 = 11220^2 + 6408^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 579547 + ... + 579834.

Almost surely, 2^166950864 is an apocalyptic number.

It is an amenable number.

166950864 is an abundant number, since it is smaller than the sum of its proper divisors (300280082).

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

166950864 is a wasteful number, since it uses less digits than its factorization.

166950864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159395 (or 1159386 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 166950864 is about 12920.9467145407. The cubic root of 166950864 is about 550.6338301634.

The spelling of 166950864 in words is "one hundred sixty-six million, nine hundred fifty thousand, eight hundred sixty-four".