23371856640 has 972 divisors, whose sum is σ = 96310639152. Its totient is φ = 5419560960.

The previous prime is 23371856591. The next prime is 23371856647. The reversal of 23371856640 is 4665817332.

23371856640 is a `hidden beast` number, since 2 + 3 + 37 + 18 + 566 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (972).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (23371856647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1016167669 + ... + 1016167691.

Almost surely, 2^23371856640 is an apocalyptic number.

23371856640 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 23371856640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48155319576).

23371856640 is an abundant number, since it is smaller than the sum of its proper divisors (72938782512).

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

23371856640 is an frugal number, since it uses more digits than its factorization.

23371856640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 23371856640 in words is "twenty-three billion, three hundred seventy-one million, eight hundred fifty-six thousand, six hundred forty".