23166256125540 has 192 divisors, whose sum is σ = 74046107439360. Its totient is φ = 5361176770560.

The previous prime is 23166256125527. The next prime is 23166256125557. The reversal of 23166256125540 is 4552165266132.

It is a self number, because there is not a number n which added to its sum of digits gives 23166256125540.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7655355 + ... + 10243874.

It is an arithmetic number, because the mean of its divisors is an integer number (385656809580).

Almost surely, 2^{23166256125540} is an apocalyptic number.

23166256125540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23166256125540 is an abundant number, since it is smaller than the sum of its proper divisors (50879851313820).

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

23166256125540 is a wasteful number, since it uses less digits than its factorization.

23166256125540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17899342 (or 17899340 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 23166256125540 in words is "twenty-three trillion, one hundred sixty-six billion, two hundred fifty-six million, one hundred twenty-five thousand, five hundred forty".