155210880 has 128 divisors (see below), whose sum is σ = 539784000. Its totient is φ = 37621760.

The previous prime is 155210857. The next prime is 155210903. The reversal of 155210880 is 88012551.

It is an interprime number because it is at equal distance from previous prime (155210857) and next prime (155210903).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17446 + ... + 24794.

Almost surely, 2^155210880 is an apocalyptic number.

155210880 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 155210880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269892000).

155210880 is an abundant number, since it is smaller than the sum of its proper divisors (384573120).

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

155210880 is a wasteful number, since it uses less digits than its factorization.

155210880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7382 (or 7370 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 155210880 is about 12458.3658639486. The cubic root of 155210880 is about 537.4120339189.

The spelling of 155210880 in words is "one hundred fifty-five million, two hundred ten thousand, eight hundred eighty".