23866851120 has 320 divisors, whose sum is σ = 87210418176. Its totient is φ = 5285928960.

The previous prime is 23866851101. The next prime is 23866851149. The reversal of 23866851120 is 2115866832.

It is a Cunningham number, because it is equal to 154489²-1.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 10813057 + ... + 10815263.

Almost surely, 2^23866851120 is an apocalyptic number.

23866851120 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 23866851120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43605209088).

23866851120 is an abundant number, since it is smaller than the sum of its proper divisors (63343567056).

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

23866851120 is a wasteful number, since it uses less digits than its factorization.

23866851120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428 (or 2422 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 23866851120 in words is "twenty-three billion, eight hundred sixty-six million, eight hundred fifty-one thousand, one hundred twenty".