23123566517408 has 48 divisors (see below), whose sum is σ = 52182410664384. Its totient is φ = 9880693079040.

The previous prime is 23123566517369. The next prime is 23123566517437. The reversal of 23123566517408 is 80471566532132.

It is a self number, because there is not a number n which added to its sum of digits gives 23123566517408.

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, 153085058 + ... + 153236033.

It is an arithmetic number, because the mean of its divisors is an integer number (1087133555508).

Almost surely, 2^{23123566517408} is an apocalyptic number.

23123566517408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23123566517408 is an abundant number, since it is smaller than the sum of its proper divisors (29058844146976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23123566517408 is a wasteful number, since it uses less digits than its factorization.

23123566517408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306321445 (or 306321437 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 23123566517408 in words is "twenty-three trillion, one hundred twenty-three billion, five hundred sixty-six million, five hundred seventeen thousand, four hundred eight".