15941122568 has 60 divisors (see below), whose sum is σ = 34907448495. Its totient is φ = 6824410320.

The previous prime is 15941122543. The next prime is 15941122609. The reversal of 15941122568 is 86522114951.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 7970561284 + 7970561284 = 89278^2 + 89278^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=89278.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 17498033 + ... + 17498943.

Almost surely, 2^15941122568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15941122568

15941122568 is an abundant number, since it is smaller than the sum of its proper divisors (18966325927).

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

15941122568 is an frugal number, since it uses more digits than its factorization.

15941122568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856 (or 920 counting only the distinct ones).

The product of its digits is 172800, while the sum is 44.

The spelling of 15941122568 in words is "fifteen billion, nine hundred forty-one million, one hundred twenty-two thousand, five hundred sixty-eight".