11553688641 has 16 divisors (see below), whose sum is σ = 16813038528. Its totient is φ = 6999038400.

The previous prime is 11553688633. The next prime is 11553688651. The reversal of 11553688641 is 14688635511.

It is not a de Polignac number, because 11553688641 - 2³ = 11553688633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11553688651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5526 + ... + 152111.

It is an arithmetic number, because the mean of its divisors is an integer number (1050814908).

Almost surely, 2^11553688641 is an apocalyptic number.

11553688641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11553688641 is a deficient number, since it is larger than the sum of its proper divisors (5259349887).

11553688641 is a wasteful number, since it uses less digits than its factorization.

11553688641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159872.

The product of its digits is 691200, while the sum is 48.

The spelling of 11553688641 in words is "eleven billion, five hundred fifty-three million, six hundred eighty-eight thousand, six hundred forty-one".