155887680 has 112 divisors (see below), whose sum is σ = 533058624. Its totient is φ = 38369280.

The previous prime is 155887651. The next prime is 155887687. The reversal of 155887680 is 86788551.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (155887687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6235 + ... + 18725.

It is an arithmetic number, because the mean of its divisors is an integer number (4759452).

Almost surely, 2^155887680 is an apocalyptic number.

155887680 is a gapful number since it is divisible by the number (10) 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 155887680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266529312).

155887680 is an abundant number, since it is smaller than the sum of its proper divisors (377170944).

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

155887680 is a wasteful number, since it uses less digits than its factorization.

155887680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12524 (or 12514 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 48.

The square root of 155887680 is about 12485.4987885947. The cubic root of 155887680 is about 538.1920330863.

The spelling of 155887680 in words is "one hundred fifty-five million, eight hundred eighty-seven thousand, six hundred eighty".