155166402 has 16 divisors (see below), whose sum is σ = 313080480. Its totient is φ = 51264192.

The previous prime is 155166379. The next prime is 155166421. The reversal of 155166402 is 204661551.

It is a super-2 number, since 2×155166402² = 48153224619251208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155166402.

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, 113752 + ... + 115107.

It is an arithmetic number, because the mean of its divisors is an integer number (19567530).

Almost surely, 2^155166402 is an apocalyptic number.

155166402 is an abundant number, since it is smaller than the sum of its proper divisors (157914078).

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

155166402 is a wasteful number, since it uses less digits than its factorization.

155166402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228977.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 155166402 is about 12456.5806704729. The cubic root of 155166402 is about 537.3606945281.

The spelling of 155166402 in words is "one hundred fifty-five million, one hundred sixty-six thousand, four hundred two".