23691004416 has 200 divisors, whose sum is σ = 72441277524. Its totient is φ = 7703838720.

The previous prime is 23691004333. The next prime is 23691004439. The reversal of 23691004416 is 61440019632.

23691004416 is a `hidden beast` number, since 236 + 9 + 1 + 0 + 0 + 4 + 416 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23519289600 + 171714816 = 153360^2 + 13104^2 .

It is a super-2 number, since 2×23691004416² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1693386 + ... + 1707318.

Almost surely, 2^23691004416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23691004416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36220638762).

23691004416 is an abundant number, since it is smaller than the sum of its proper divisors (48750273108).

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

23691004416 is an equidigital number, since it uses as much as digits as its factorization.

23691004416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14004 (or 13979 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 23691004416 in words is "twenty-three billion, six hundred ninety-one million, four thousand, four hundred sixteen".