23165426215500 has 768 divisors, whose sum is σ = 71995320004608. Its totient is φ = 5780935680000.

The previous prime is 23165426215469. The next prime is 23165426215517. The reversal of 23165426215500 is 551262456132.

It is an unprimeable number.

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 in 255 ways as a sum of consecutive naturals, for example, 52292158279 + ... + 52292158721.

It is an arithmetic number, because the mean of its divisors is an integer number (93743906256).

Almost surely, 2^{23165426215500} is an apocalyptic number.

23165426215500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23165426215500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35997660002304).

23165426215500 is an abundant number, since it is smaller than the sum of its proper divisors (48829893789108).

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

23165426215500 is a wasteful number, since it uses less digits than its factorization.

23165426215500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 23165426215500 in words is "twenty-three trillion, one hundred sixty-five billion, four hundred twenty-six million, two hundred fifteen thousand, five hundred".