13099511976 has 64 divisors (see below), whose sum is σ = 34793841600. Its totient is φ = 4095587328.

The previous prime is 13099511969. The next prime is 13099512001. The reversal of 13099511976 is 67911599031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64755 + ... + 174333.

It is an arithmetic number, because the mean of its divisors is an integer number (543653775).

Almost surely, 2^13099511976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13099511976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17396920800).

13099511976 is an abundant number, since it is smaller than the sum of its proper divisors (21694329624).

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

13099511976 is a wasteful number, since it uses less digits than its factorization.

13099511976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109898 (or 109894 counting only the distinct ones).

The product of its (nonzero) digits is 459270, while the sum is 51.

The spelling of 13099511976 in words is "thirteen billion, ninety-nine million, five hundred eleven thousand, nine hundred seventy-six".