1557320107813 has 16 divisors (see below), whose sum is σ = 1617005505024. Its totient is φ = 1498755778560.

The previous prime is 1557320107729. The next prime is 1557320107829. The reversal of 1557320107813 is 3187010237551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1557320107813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1557320107813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1557320107513) 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 15 ways as a sum of consecutive naturals, for example, 9832656 + ... + 9989782.

It is an arithmetic number, because the mean of its divisors is an integer number (101062844064).

Almost surely, 2^{1557320107813} is an apocalyptic number.

It is an amenable number.

1557320107813 is a deficient number, since it is larger than the sum of its proper divisors (59685397211).

1557320107813 is a wasteful number, since it uses less digits than its factorization.

1557320107813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160692.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 1557320107813 in words is "one trillion, five hundred fifty-seven billion, three hundred twenty million, one hundred seven thousand, eight hundred thirteen".