1557285456148 has 12 divisors (see below), whose sum is σ = 2727533923380. Its totient is φ = 777990049472.

The previous prime is 1557285456121. The next prime is 1557285456157. The reversal of 1557285456148 is 8416545827551.

It can be written as a sum of positive squares in 2 ways, for example, as 1188627618564 + 368657837584 = 1090242^2 + 607172^2 .

It is a congruent number.

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, 163164283 + ... + 163173826.

It is an arithmetic number, because the mean of its divisors is an integer number (227294493615).

Almost surely, 2^{1557285456148} is an apocalyptic number.

It is an amenable number.

1557285456148 is a deficient number, since it is larger than the sum of its proper divisors (1170248467232).

1557285456148 is a wasteful number, since it uses less digits than its factorization.

1557285456148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326339306 (or 326339304 counting only the distinct ones).

The product of its digits is 53760000, while the sum is 61.

The spelling of 1557285456148 in words is "one trillion, five hundred fifty-seven billion, two hundred eighty-five million, four hundred fifty-six thousand, one hundred forty-eight".