23323998656640 has 256 divisors, whose sum is σ = 83720161751040. Its totient is φ = 5471905689600.

The previous prime is 23323998656593. The next prime is 23323998656653. The reversal of 23323998656640 is 4665689932332.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17157474 + ... + 18466913.

It is an arithmetic number, because the mean of its divisors is an integer number (327031881840).

Almost surely, 2^{23323998656640} is an apocalyptic number.

23323998656640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23323998656640 is an abundant number, since it is smaller than the sum of its proper divisors (60396163094400).

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

23323998656640 is a wasteful number, since it uses less digits than its factorization.

23323998656640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35624451 (or 35624439 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 66.

The spelling of 23323998656640 in words is "twenty-three trillion, three hundred twenty-three billion, nine hundred ninety-eight million, six hundred fifty-six thousand, six hundred forty".