23866651380 has 384 divisors, whose sum is σ = 82426724352. Its totient is φ = 5080320000.

The previous prime is 23866651363. The next prime is 23866651399. The reversal of 23866651380 is 8315666832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16224045 + ... + 16225515.

It is an arithmetic number, because the mean of its divisors is an integer number (214652928).

Almost surely, 2^23866651380 is an apocalyptic number.

23866651380 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 23866651380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41213362176).

23866651380 is an abundant number, since it is smaller than the sum of its proper divisors (58560072972).

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

23866651380 is a wasteful number, since it uses less digits than its factorization.

23866651380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 23866651380 in words is "twenty-three billion, eight hundred sixty-six million, six hundred fifty-one thousand, three hundred eighty".