11555919344 has 20 divisors (see below), whose sum is σ = 22392287040. Its totient is φ = 5777264640.

The previous prime is 11555919329. The next prime is 11555919359. The reversal of 11555919344 is 44391955511.

It is an interprime number because it is at equal distance from previous prime (11555919329) and next prime (11555919359).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110192 + ... + 187760.

It is an arithmetic number, because the mean of its divisors is an integer number (1119614352).

Almost surely, 2^11555919344 is an apocalyptic number.

It is an amenable number.

11555919344 is a deficient number, since it is larger than the sum of its proper divisors (10836367696).

11555919344 is an equidigital number, since it uses as much as digits as its factorization.

11555919344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86888 (or 86882 counting only the distinct ones).

The product of its digits is 486000, while the sum is 47.

The spelling of 11555919344 in words is "eleven billion, five hundred fifty-five million, nine hundred nineteen thousand, three hundred forty-four".