23115150544 has 20 divisors (see below), whose sum is σ = 44792506980. Its totient is φ = 11555793920.

The previous prime is 23115150503. The next prime is 23115150593. The reversal of 23115150544 is 44505151132.

It can be written as a sum of positive squares in 2 ways, for example, as 17765690944 + 5349459600 = 133288^2 + 73140^2 .

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, 967 + ... + 215014.

It is an arithmetic number, because the mean of its divisors is an integer number (2239625349).

Almost surely, 2^23115150544 is an apocalyptic number.

It is an amenable number.

23115150544 is a deficient number, since it is larger than the sum of its proper divisors (21677356436).

23115150544 is a wasteful number, since it uses less digits than its factorization.

23115150544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222678 (or 222672 counting only the distinct ones).

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

The spelling of 23115150544 in words is "twenty-three billion, one hundred fifteen million, one hundred fifty thousand, five hundred forty-four".