155488022832 has 160 divisors (see below), whose sum is σ = 420066256896. Its totient is φ = 49504665600.

The previous prime is 155488022821. The next prime is 155488022857. The reversal of 155488022832 is 238220884551.

It is a happy number.

155488022832 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37619038 + ... + 37623170.

Almost surely, 2^155488022832 is an apocalyptic number.

155488022832 is a gapful number since it is divisible by the number (12) 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 155488022832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210033128448).

155488022832 is an abundant number, since it is smaller than the sum of its proper divisors (264578234064).

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

155488022832 is a wasteful number, since it uses less digits than its factorization.

155488022832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499 (or 4493 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 48.

The spelling of 155488022832 in words is "one hundred fifty-five billion, four hundred eighty-eight million, twenty-two thousand, eight hundred thirty-two".