1557369999244 has 12 divisors (see below), whose sum is σ = 2726427134704. Its totient is φ = 778390817904.

The previous prime is 1557369999239. The next prime is 1557369999293. The reversal of 1557369999244 is 4429999637551.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73533519 + ... + 73554694.

Almost surely, 2^{1557369999244} is an apocalyptic number.

It is an amenable number.

1557369999244 is a deficient number, since it is larger than the sum of its proper divisors (1169057135460).

1557369999244 is a wasteful number, since it uses less digits than its factorization.

1557369999244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147090864 (or 147090862 counting only the distinct ones).

The product of its digits is 661348800, while the sum is 73.

The spelling of 1557369999244 in words is "one trillion, five hundred fifty-seven billion, three hundred sixty-nine million, nine hundred ninety-nine thousand, two hundred forty-four".