23157744603840 has 2016 divisors, whose sum is σ = 107066000670720. Its totient is φ = 4483454976000.

The previous prime is 23157744603823. The next prime is 23157744603899. The reversal of 23157744603840 is 4830644775132.

23157744603840 is a `hidden beast` number, since 2 + 3 + 1 + 577 + 4 + 4 + 60 + 3 + 8 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a super-2 number, since 2×23157744603840² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2827214145 + ... + 2827222335.

Almost surely, 2^{23157744603840} is an apocalyptic number.

23157744603840 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 23157744603840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53533000335360).

23157744603840 is an abundant number, since it is smaller than the sum of its proper divisors (83908256066880).

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

23157744603840 is a wasteful number, since it uses less digits than its factorization.

23157744603840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8323 (or 8299 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 54.

The spelling of 23157744603840 in words is "twenty-three trillion, one hundred fifty-seven billion, seven hundred forty-four million, six hundred three thousand, eight hundred forty".