13398988516 has 27 divisors (see below), whose sum is σ = 24242008707. Its totient is φ = 6479908920.

The previous prime is 13398988513. The next prime is 13398988529. The reversal of 13398988516 is 61588989331.

The square root of 13398988516 is 115754.

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

13398988516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13398988513) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 7175815 + ... + 7177681.

Almost surely, 2^13398988516 is an apocalyptic number.

13398988516 is the 115754-th square number.

It is an amenable number.

13398988516 is a deficient number, since it is larger than the sum of its proper divisors (10843020191).

13398988516 is an frugal number, since it uses more digits than its factorization.

13398988516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800 (or 1900 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 61.

The spelling of 13398988516 in words is "thirteen billion, three hundred ninety-eight million, nine hundred eighty-eight thousand, five hundred sixteen".