11521550344 has 32 divisors (see below), whose sum is σ = 21726930240. Its totient is φ = 5727758400.

The previous prime is 11521550251. The next prime is 11521550371. The reversal of 11521550344 is 44305512511.

It is a super-2 number, since 2×11521550344² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2061634 + ... + 2067214.

It is an arithmetic number, because the mean of its divisors is an integer number (678966570).

Almost surely, 2^11521550344 is an apocalyptic number.

It is an amenable number.

11521550344 is a deficient number, since it is larger than the sum of its proper divisors (10205379896).

11521550344 is a wasteful number, since it uses less digits than its factorization.

11521550344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7021 (or 7017 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 11521550344 in words is "eleven billion, five hundred twenty-one million, five hundred fifty thousand, three hundred forty-four".