15020813956 has 12 divisors (see below), whose sum is σ = 26927557020. Its totient is φ = 7327226240.

The previous prime is 15020813867. The next prime is 15020813959. The reversal of 15020813956 is 65931802051.

It can be written as a sum of positive squares in 2 ways, for example, as 6769998400 + 8250815556 = 82280^2 + 90834^2 .

It is not an unprimeable number, because it can be changed into a prime (15020813959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45795001 + ... + 45795328.

It is an arithmetic number, because the mean of its divisors is an integer number (2243963085).

Almost surely, 2^15020813956 is an apocalyptic number.

It is an amenable number.

15020813956 is a deficient number, since it is larger than the sum of its proper divisors (11906743064).

15020813956 is a wasteful number, since it uses less digits than its factorization.

15020813956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91590374 (or 91590372 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 15020813956 in words is "fifteen billion, twenty million, eight hundred thirteen thousand, nine hundred fifty-six".