23566669056 has 216 divisors, whose sum is σ = 78177800064. Its totient is φ = 6688051200.

The previous prime is 23566669031. The next prime is 23566669097. The reversal of 23566669056 is 65096666532.

It is a super-2 number, since 2×23566669056² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23566668993 and 23566669011.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 2430490 + ... + 2440166.

Almost surely, 2^23566669056 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 23566669056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39088900032).

23566669056 is an abundant number, since it is smaller than the sum of its proper divisors (54611131008).

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

23566669056 is a wasteful number, since it uses less digits than its factorization.

23566669056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9857 (or 9840 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 54.

The spelling of 23566669056 in words is "twenty-three billion, five hundred sixty-six million, six hundred sixty-nine thousand, fifty-six".