11557153516881 has 32 divisors (see below), whose sum is σ = 17627383957248. Its totient is φ = 6597907706880.

The previous prime is 11557153516871. The next prime is 11557153516939. The reversal of 11557153516881 is 18861535175511.

It is not a de Polignac number, because 11557153516881 - 2²¹ = 11557151419729 is a prime.

It is a super-2 number, since 2×11557153516881² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11557153516871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296919301 + ... + 296958221.

It is an arithmetic number, because the mean of its divisors is an integer number (550855748664).

Almost surely, 2^{11557153516881} is an apocalyptic number.

It is an amenable number.

11557153516881 is a deficient number, since it is larger than the sum of its proper divisors (6070230440367).

11557153516881 is a wasteful number, since it uses less digits than its factorization.

11557153516881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51801.

The product of its digits is 5040000, while the sum is 57.

The spelling of 11557153516881 in words is "eleven trillion, five hundred fifty-seven billion, one hundred fifty-three million, five hundred sixteen thousand, eight hundred eighty-one".