1312064623656 has 48 divisors (see below), whose sum is σ = 3740535115200. Its totient is φ = 414336196512.

The previous prime is 1312064623651. The next prime is 1312064623663. The reversal of 1312064623656 is 6563264602131.

1312064623656 is a `hidden beast` number, since 1 + 3 + 12 + 0 + 6 + 4 + 623 + 6 + 5 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (1312064623651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 479554416 + ... + 479557151.

It is an arithmetic number, because the mean of its divisors is an integer number (77927814900).

Almost surely, 2^{1312064623656} is an apocalyptic number.

It is an amenable number.

1312064623656 is an abundant number, since it is smaller than the sum of its proper divisors (2428470491544).

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

1312064623656 is a wasteful number, since it uses less digits than its factorization.

1312064623656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959111598 (or 959111591 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 1312064623656 in words is "one trillion, three hundred twelve billion, sixty-four million, six hundred twenty-three thousand, six hundred fifty-six".