156020880 has 80 divisors (see below), whose sum is σ = 487022400. Its totient is φ = 41316864.

The previous prime is 156020857. The next prime is 156020881. The reversal of 156020880 is 88020651.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is not an unprimeable number, because it can be changed into a prime (156020881) 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, 33579 + ... + 37941.

It is an arithmetic number, because the mean of its divisors is an integer number (6087780).

Almost surely, 2^156020880 is an apocalyptic number.

156020880 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 156020880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243511200).

156020880 is an abundant number, since it is smaller than the sum of its proper divisors (331001520).

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

156020880 is a wasteful number, since it uses less digits than its factorization.

156020880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528 (or 4522 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 156020880 is about 12490.8318377921. The cubic root of 156020880 is about 538.3452775474.

The spelling of 156020880 in words is "one hundred fifty-six million, twenty thousand, eight hundred eighty".