166902404 has 12 divisors (see below), whose sum is σ = 292369728. Its totient is φ = 83368200.

The previous prime is 166902401. The next prime is 166902409. The reversal of 166902404 is 404209661.

It is a happy number.

166902404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×166902404³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (166902401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16112 + ... + 24359.

It is an arithmetic number, because the mean of its divisors is an integer number (24364144).

Almost surely, 2^166902404 is an apocalyptic number.

It is an amenable number.

166902404 is a deficient number, since it is larger than the sum of its proper divisors (125467324).

166902404 is a wasteful number, since it uses less digits than its factorization.

166902404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41506 (or 41504 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 166902404 is about 12919.0713288533. The cubic root of 166902404 is about 550.5805484233.

The spelling of 166902404 in words is "one hundred sixty-six million, nine hundred two thousand, four hundred four".