156221261160 has 512 divisors, whose sum is σ = 522158400000. Its totient is φ = 37236326400.

The previous prime is 156221261153. The next prime is 156221261171. The reversal of 156221261160 is 61162122651.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 995039802 + ... + 995039958.

It is an arithmetic number, because the mean of its divisors is an integer number (1019840625).

Almost surely, 2^156221261160 is an apocalyptic number.

156221261160 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 156221261160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261079200000).

156221261160 is an abundant number, since it is smaller than the sum of its proper divisors (365937138840).

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

156221261160 is a wasteful number, since it uses less digits than its factorization.

156221261160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 156221261160 in words is "one hundred fifty-six billion, two hundred twenty-one million, two hundred sixty-one thousand, one hundred sixty".