155636928 has 84 divisors (see below), whose sum is σ = 455676000. Its totient is φ = 50766336.

The previous prime is 155636927. The next prime is 155636941. The reversal of 155636928 is 829636551.

155636928 is a `hidden beast` number, since 1 + 5 + 5 + 636 + 9 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (155636927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24198 + ... + 29946.

Almost surely, 2^155636928 is an apocalyptic number.

155636928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155636928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227838000).

155636928 is an abundant number, since it is smaller than the sum of its proper divisors (300039072).

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

155636928 is a wasteful number, since it uses less digits than its factorization.

155636928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5814 (or 5801 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 155636928 is about 12475.4530178266. The cubic root of 155636928 is about 537.9033099225.

The spelling of 155636928 in words is "one hundred fifty-five million, six hundred thirty-six thousand, nine hundred twenty-eight".