23115554144 has 12 divisors (see below), whose sum is σ = 45508747284. Its totient is φ = 11557777056.

The previous prime is 23115554107. The next prime is 23115554149. The reversal of 23115554144 is 44145551132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23115554149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361180502 + ... + 361180565.

It is an arithmetic number, because the mean of its divisors is an integer number (3792395607).

Almost surely, 2^23115554144 is an apocalyptic number.

It is an amenable number.

23115554144 is a deficient number, since it is larger than the sum of its proper divisors (22393193140).

23115554144 is an equidigital number, since it uses as much as digits as its factorization.

23115554144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722361077 (or 722361069 counting only the distinct ones).

The product of its digits is 48000, while the sum is 35.

The spelling of 23115554144 in words is "twenty-three billion, one hundred fifteen million, five hundred fifty-four thousand, one hundred forty-four".