156332461320 has 512 divisors, whose sum is σ = 628397568000. Its totient is φ = 33771479040.

The previous prime is 156332461289. The next prime is 156332461331. The reversal of 156332461320 is 23164233651.

156332461320 is a `hidden beast` number, since 1 + 5 + 6 + 3 + 32 + 4 + 613 + 2 + 0 = 666.

It is a Cunningham number, because it is equal to 395389²-1.

It is a super-2 number, since 2×156332461320² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 75122680 + ... + 75124760.

It is an arithmetic number, because the mean of its divisors is an integer number (1227339000).

Almost surely, 2^156332461320 is an apocalyptic number.

156332461320 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 156332461320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314198784000).

156332461320 is an abundant number, since it is smaller than the sum of its proper divisors (472065106680).

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

156332461320 is a wasteful number, since it uses less digits than its factorization.

156332461320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650 (or 2640 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 156332461320 its reverse (23164233651), we get a palindrome (179496694971).

The spelling of 156332461320 in words is "one hundred fifty-six billion, three hundred thirty-two million, four hundred sixty-one thousand, three hundred twenty".