156155020 has 48 divisors (see below), whose sum is σ = 377072640. Its totient is φ = 53210304.

The previous prime is 156155003. The next prime is 156155023. The reversal of 156155020 is 20551651.

156155020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (156155023) 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, 20041 + ... + 26719.

It is an arithmetic number, because the mean of its divisors is an integer number (7855680).

Almost surely, 2^156155020 is an apocalyptic number.

156155020 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 156155020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188536320).

156155020 is an abundant number, since it is smaller than the sum of its proper divisors (220917620).

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

156155020 is a wasteful number, since it uses less digits than its factorization.

156155020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6862 (or 6860 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 156155020 is about 12496.2002224676. The cubic root of 156155020 is about 538.4995153435.

The spelling of 156155020 in words is "one hundred fifty-six million, one hundred fifty-five thousand, twenty".