23156187118 has 16 divisors (see below), whose sum is σ = 37963845504. Its totient is φ = 10545511680.

The previous prime is 23156187077. The next prime is 23156187121. The reversal of 23156187118 is 81178165132.

It is a congruent number.

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, 10983855 + ... + 10985962.

It is an arithmetic number, because the mean of its divisors is an integer number (2372740344).

Almost surely, 2^23156187118 is an apocalyptic number.

23156187118 is a deficient number, since it is larger than the sum of its proper divisors (14807658386).

23156187118 is a wasteful number, since it uses less digits than its factorization.

23156187118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21969867.

The product of its digits is 80640, while the sum is 43.

The spelling of 23156187118 in words is "twenty-three billion, one hundred fifty-six million, one hundred eighty-seven thousand, one hundred eighteen".