15616998764 has 12 divisors (see below), whose sum is σ = 27332933544. Its totient is φ = 7807589184.

The previous prime is 15616998721. The next prime is 15616998767. The reversal of 15616998764 is 46789961651.

It is a junction number, because it is equal to n+sod(n) for n = 15616998697 and 15616998706.

It is not an unprimeable number, because it can be changed into a prime (15616998767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188189 + ... + 258164.

It is an arithmetic number, because the mean of its divisors is an integer number (2277744462).

Almost surely, 2^15616998764 is an apocalyptic number.

It is an amenable number.

15616998764 is a deficient number, since it is larger than the sum of its proper divisors (11715934780).

15616998764 is a wasteful number, since it uses less digits than its factorization.

15616998764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455104 (or 455102 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 62.

The spelling of 15616998764 in words is "fifteen billion, six hundred sixteen million, nine hundred ninety-eight thousand, seven hundred sixty-four".