11557399372 has 12 divisors (see below), whose sum is σ = 20230378560. Its totient is φ = 5777291216.

The previous prime is 11557399307. The next prime is 11557399387. The reversal of 11557399372 is 27399375511.

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, 333547 + ... + 366562.

It is an arithmetic number, because the mean of its divisors is an integer number (1685864880).

Almost surely, 2^11557399372 is an apocalyptic number.

It is an amenable number.

11557399372 is a deficient number, since it is larger than the sum of its proper divisors (8672979188).

11557399372 is a wasteful number, since it uses less digits than its factorization.

11557399372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704240 (or 704238 counting only the distinct ones).

The product of its digits is 1786050, while the sum is 52.

The spelling of 11557399372 in words is "eleven billion, five hundred fifty-seven million, three hundred ninety-nine thousand, three hundred seventy-two".