23672665203840 has 256 divisors, whose sum is σ = 83845613232000. Its totient is φ = 6312339984384.

The previous prime is 23672665203839. The next prime is 23672665203871. The reversal of 23672665203840 is 4830256627632.

23672665203840 is a `hidden beast` number, since 2 + 3 + 6 + 72 + 6 + 6 + 520 + 3 + 8 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 422796327 + ... + 422852313.

Almost surely, 2^{23672665203840} is an apocalyptic number.

23672665203840 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 23672665203840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41922806616000).

23672665203840 is an abundant number, since it is smaller than the sum of its proper divisors (60172948028160).

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

23672665203840 is a wasteful number, since it uses less digits than its factorization.

23672665203840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80484 (or 80466 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 54.

The spelling of 23672665203840 in words is "twenty-three trillion, six hundred seventy-two billion, six hundred sixty-five million, two hundred three thousand, eight hundred forty".