11553881157 has 72 divisors (see below), whose sum is σ = 21816273024. Its totient is φ = 5829316416.

The previous prime is 11553881123. The next prime is 11553881159. The reversal of 11553881157 is 75118835511.

11553881157 is a `hidden beast` number, since 1 + 1 + 553 + 8 + 81 + 15 + 7 = 666.

It is not a de Polignac number, because 11553881157 - 2¹⁰ = 11553880133 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11553881159) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 88048 + ... + 175670.

It is an arithmetic number, because the mean of its divisors is an integer number (303003792).

Almost surely, 2^11553881157 is an apocalyptic number.

It is an amenable number.

11553881157 is a deficient number, since it is larger than the sum of its proper divisors (10262391867).

11553881157 is a wasteful number, since it uses less digits than its factorization.

11553881157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87679 (or 87669 counting only the distinct ones).

The product of its digits is 168000, while the sum is 45.

The spelling of 11553881157 in words is "eleven billion, five hundred fifty-three million, eight hundred eighty-one thousand, one hundred fifty-seven".