1557233572116 has 72 divisors (see below), whose sum is σ = 3755341699200. Its totient is φ = 502225772160.

The previous prime is 1557233572099. The next prime is 1557233572121. The reversal of 1557233572116 is 6112753327551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67439125 + ... + 67462211.

It is an arithmetic number, because the mean of its divisors is an integer number (52157523600).

Almost surely, 2^{1557233572116} is an apocalyptic number.

It is an amenable number.

1557233572116 is an abundant number, since it is smaller than the sum of its proper divisors (2198108127084).

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

1557233572116 is a wasteful number, since it uses less digits than its factorization.

1557233572116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29005 (or 28972 counting only the distinct ones).

The product of its digits is 1323000, while the sum is 48.

Adding to 1557233572116 its reverse (6112753327551), we get a palindrome (7669986899667).

The spelling of 1557233572116 in words is "one trillion, five hundred fifty-seven billion, two hundred thirty-three million, five hundred seventy-two thousand, one hundred sixteen".