156320120 has 64 divisors (see below), whose sum is σ = 391910400. Its totient is φ = 55626880.

The previous prime is 156320119. The next prime is 156320123. The reversal of 156320120 is 21023651.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 156320092 and 156320101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156320123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16901 + ... + 24459.

It is an arithmetic number, because the mean of its divisors is an integer number (6123600).

Almost surely, 2^156320120 is an apocalyptic number.

156320120 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 156320120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195955200).

156320120 is an abundant number, since it is smaller than the sum of its proper divisors (235590280).

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

156320120 is a wasteful number, since it uses less digits than its factorization.

156320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628 (or 7624 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 156320120 is about 12502.8044853945. The cubic root of 156320120 is about 538.6892305708.

Adding to 156320120 its reverse (21023651), we get a palindrome (177343771).

The spelling of 156320120 in words is "one hundred fifty-six million, three hundred twenty thousand, one hundred twenty".