166364406 has 24 divisors (see below), whose sum is σ = 388184160. Its totient is φ = 51188976.

The previous prime is 166364357. The next prime is 166364413. The reversal of 166364406 is 604463661.

166364406 is a `hidden beast` number, since 1 + 6 + 6 + 3 + 644 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355246 + ... + 355713.

It is an arithmetic number, because the mean of its divisors is an integer number (16174340).

Almost surely, 2^166364406 is an apocalyptic number.

166364406 is an abundant number, since it is smaller than the sum of its proper divisors (221819754).

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

166364406 is a wasteful number, since it uses less digits than its factorization.

166364406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710980 (or 710977 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 166364406 is about 12898.2326696335. The cubic root of 166364406 is about 549.9883259230.

The spelling of 166364406 in words is "one hundred sixty-six million, three hundred sixty-four thousand, four hundred six".