166200404 has 24 divisors (see below), whose sum is σ = 297622080. Its totient is φ = 81183296.

The previous prime is 166200383. The next prime is 166200443. The reversal of 166200404 is 404002661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 166200404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37304 + ... + 41520.

It is an arithmetic number, because the mean of its divisors is an integer number (12400920).

Almost surely, 2^166200404 is an apocalyptic number.

It is an amenable number.

166200404 is a deficient number, since it is larger than the sum of its proper divisors (131421676).

166200404 is a wasteful number, since it uses less digits than its factorization.

166200404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447 (or 4445 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 166200404 is about 12891.8735643816. The cubic root of 166200404 is about 549.8075403746.

The spelling of 166200404 in words is "one hundred sixty-six million, two hundred thousand, four hundred four".