155166056 has 16 divisors (see below), whose sum is σ = 291084900. Its totient is φ = 77543424.

The previous prime is 155166041. The next prime is 155166091. The reversal of 155166056 is 650661551.

It can be written as a sum of positive squares in 2 ways, for example, as 153016900 + 2149156 = 12370^2 + 1466^2 .

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, 17906 + ... + 25118.

Almost surely, 2^155166056 is an apocalyptic number.

It is an amenable number.

155166056 is a deficient number, since it is larger than the sum of its proper divisors (135918844).

155166056 is a wasteful number, since it uses less digits than its factorization.

155166056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9908 (or 9904 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 155166056 is about 12456.5667822237. The cubic root of 155166056 is about 537.3602951140.

The spelling of 155166056 in words is "one hundred fifty-five million, one hundred sixty-six thousand, fifty-six".