1557912655313 has 16 divisors (see below), whose sum is σ = 1783928689920. Its totient is φ = 1332761761536.

The previous prime is 1557912655279. The next prime is 1557912655339. The reversal of 1557912655313 is 3135562197551.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1557912655313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1557912652313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23574245 + ... + 23640237.

It is an arithmetic number, because the mean of its divisors is an integer number (111495543120).

Almost surely, 2^{1557912655313} is an apocalyptic number.

It is an amenable number.

1557912655313 is a deficient number, since it is larger than the sum of its proper divisors (226016034607).

1557912655313 is an equidigital number, since it uses as much as digits as its factorization.

1557912655313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72496.

The product of its digits is 4252500, while the sum is 53.

The spelling of 1557912655313 in words is "one trillion, five hundred fifty-seven billion, nine hundred twelve million, six hundred fifty-five thousand, three hundred thirteen".