15653512996 has 63 divisors (see below), whose sum is σ = 30787779883. Its totient is φ = 6963845240.

The previous prime is 15653512981. The next prime is 15653512997. The reversal of 15653512996 is 69921535651.

The square root of 15653512996 is 125114.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

Its product of digits (2187000) is a multiple of the sum of its prime divisors (60).

It is not an unprimeable number, because it can be changed into a prime (15653512997) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 333053445 + ... + 333053491.

Almost surely, 2^15653512996 is an apocalyptic number.

15653512996 is the 125114-th square number.

It is an amenable number.

15653512996 is a deficient number, since it is larger than the sum of its proper divisors (15134266887).

15653512996 is an frugal number, since it uses more digits than its factorization.

15653512996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 60 counting only the distinct ones).

The product of its digits is 2187000, while the sum is 52.

The spelling of 15653512996 in words is "fifteen billion, six hundred fifty-three million, five hundred twelve thousand, nine hundred ninety-six".