166250008 has 8 divisors (see below), whose sum is σ = 311718780. Its totient is φ = 83125000.

The previous prime is 166249933. The next prime is 166250027. The reversal of 166250008 is 800052661.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10390618 + ... + 10390633.

Almost surely, 2^166250008 is an apocalyptic number.

It is an amenable number.

166250008 is a deficient number, since it is larger than the sum of its proper divisors (145468772).

166250008 is a wasteful number, since it uses less digits than its factorization.

166250008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20781257 (or 20781253 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 166250008 is about 12893.7972684543. The cubic root of 166250008 is about 549.8622332630.

The spelling of 166250008 in words is "one hundred sixty-six million, two hundred fifty thousand, eight".