13391507616 has 96 divisors (see below), whose sum is σ = 35764545600. Its totient is φ = 4386471936.

The previous prime is 13391507609. The next prime is 13391507651. The reversal of 13391507616 is 61670519331.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2885650 + ... + 2890286.

It is an arithmetic number, because the mean of its divisors is an integer number (372547350).

Almost surely, 2^13391507616 is an apocalyptic number.

13391507616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13391507616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17882272800).

13391507616 is an abundant number, since it is smaller than the sum of its proper divisors (22373037984).

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

13391507616 is a wasteful number, since it uses less digits than its factorization.

13391507616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5166 (or 5158 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The spelling of 13391507616 in words is "thirteen billion, three hundred ninety-one million, five hundred seven thousand, six hundred sixteen".