155868488 has 16 divisors (see below), whose sum is σ = 292710780. Its totient is φ = 77812288.

The previous prime is 155868473. The next prime is 155868491. The reversal of 155868488 is 884868551.

It can be written as a sum of positive squares in 2 ways, for example, as 128640964 + 27227524 = 11342^2 + 5218^2 .

It is a super-2 number, since 2×155868488² = 48589971102812288, which contains 22 as substring.

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, 9695 + ... + 20142.

Almost surely, 2^155868488 is an apocalyptic number.

It is an amenable number.

155868488 is a deficient number, since it is larger than the sum of its proper divisors (136842292).

155868488 is a wasteful number, since it uses less digits than its factorization.

155868488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30496 (or 30492 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 53.

The square root of 155868488 is about 12484.7301933202. The cubic root of 155868488 is about 538.1699458044.

The spelling of 155868488 in words is "one hundred fifty-five million, eight hundred sixty-eight thousand, four hundred eighty-eight".