12616470656 has 16 divisors (see below), whose sum is σ = 25134375390. Its totient is φ = 6308235264.

The previous prime is 12616470637. The next prime is 12616470683. The reversal of 12616470656 is 65607461621.

It can be written as a sum of positive squares in only one way, i.e., 6928897600 + 5687573056 = 83240^2 + 75416^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49282961 + ... + 49283216.

Almost surely, 2^12616470656 is an apocalyptic number.

12616470656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12616470656 is a deficient number, since it is larger than the sum of its proper divisors (12517904734).

12616470656 is an frugal number, since it uses more digits than its factorization.

12616470656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98566191 (or 98566179 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 12616470656 in words is "twelve billion, six hundred sixteen million, four hundred seventy thousand, six hundred fifty-six".