155995082880 has 1280 divisors, whose sum is σ = 662371516800. Its totient is φ = 30953373696.

The previous prime is 155995082863. The next prime is 155995082909. The reversal of 155995082880 is 88280599551.

It is a super-4 number, since 4×155995082880⁴ (a number of 46 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1138650172 + ... + 1138650308.

Almost surely, 2^155995082880 is an apocalyptic number.

155995082880 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 155995082880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331185758400).

155995082880 is an abundant number, since it is smaller than the sum of its proper divisors (506376433920).

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

155995082880 is a wasteful number, since it uses less digits than its factorization.

155995082880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 60.

The spelling of 155995082880 in words is "one hundred fifty-five billion, nine hundred ninety-five million, eighty-two thousand, eight hundred eighty".