12616380320 has 48 divisors (see below), whose sum is σ = 29813653800. Its totient is φ = 5045289984.

The previous prime is 12616380317. The next prime is 12616380347. The reversal of 12616380320 is 2308361621.

It can be written as a sum of positive squares in 4 ways, for example, as 9866846224 + 2749534096 = 99332^2 + 52436^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884606 + ... + 898754.

Almost surely, 2^12616380320 is an apocalyptic number.

12616380320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12616380320 is an abundant number, since it is smaller than the sum of its proper divisors (17197273480).

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

12616380320 is a wasteful number, since it uses less digits than its factorization.

12616380320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19737 (or 19729 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 12616380320 in words is "twelve billion, six hundred sixteen million, three hundred eighty thousand, three hundred twenty".