11450115553 has 12 divisors (see below), whose sum is σ = 12692116800. Its totient is φ = 10308026432.

The previous prime is 11450115527. The next prime is 11450115569. The reversal of 11450115553 is 35551105411.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-11450115553 is a prime.

It is a super-2 number, since 2×11450115553² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11450115353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 854653 + ... + 867946.

It is an arithmetic number, because the mean of its divisors is an integer number (1057676400).

Almost surely, 2^11450115553 is an apocalyptic number.

It is an amenable number.

11450115553 is a deficient number, since it is larger than the sum of its proper divisors (1242001247).

11450115553 is a wasteful number, since it uses less digits than its factorization.

11450115553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722656 (or 1722639 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 11450115553 in words is "eleven billion, four hundred fifty million, one hundred fifteen thousand, five hundred fifty-three".