1307617656256 has 56 divisors (see below), whose sum is σ = 2606471322480. Its totient is φ = 650875545600.

The previous prime is 1307617656251. The next prime is 1307617656259. The reversal of 1307617656256 is 6526567167031.

It is a junction number, because it is equal to n+sod(n) for n = 1307617656197 and 1307617656206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307617656251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12801546 + ... + 12903286.

Almost surely, 2^{1307617656256} is an apocalyptic number.

1307617656256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1307617656256 is a deficient number, since it is larger than the sum of its proper divisors (1298853666224).

1307617656256 is a wasteful number, since it uses less digits than its factorization.

1307617656256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102653 (or 102643 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 55.

The spelling of 1307617656256 in words is "one trillion, three hundred seven billion, six hundred seventeen million, six hundred fifty-six thousand, two hundred fifty-six".