164402668 has 12 divisors (see below), whose sum is σ = 302847160. Its totient is φ = 77874912.

The previous prime is 164402647. The next prime is 164402671. The reversal of 164402668 is 866204461.

It is a super-3 number, since 3×164402668³ (a number of 26 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081521 + ... + 1081672.

Almost surely, 2^164402668 is an apocalyptic number.

It is an amenable number.

164402668 is a deficient number, since it is larger than the sum of its proper divisors (138444492).

164402668 is a wasteful number, since it uses less digits than its factorization.

164402668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163216 (or 2163214 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 164402668 is about 12821.9603805346. The cubic root of 164402668 is about 547.8179861539.

The spelling of 164402668 in words is "one hundred sixty-four million, four hundred two thousand, six hundred sixty-eight".