12916247680 has 64 divisors (see below), whose sum is σ = 35289046080. Its totient is φ = 4428426240.

The previous prime is 12916247657. The next prime is 12916247693. The reversal of 12916247680 is 8674261921.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×12916247680² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12916247680.

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 7 ways as a sum of consecutive naturals, for example, 1437066 + ... + 1446025.

It is an arithmetic number, because the mean of its divisors is an integer number (551391345).

Almost surely, 2^12916247680 is an apocalyptic number.

12916247680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12916247680 is an abundant number, since it is smaller than the sum of its proper divisors (22372798400).

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

12916247680 is an equidigital number, since it uses as much as digits as its factorization.

12916247680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883117 (or 2883105 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 12916247680 in words is "twelve billion, nine hundred sixteen million, two hundred forty-seven thousand, six hundred eighty".