23225864006640 has 80 divisors (see below), whose sum is σ = 72001455504768. Its totient is φ = 6193453878528.

The previous prime is 23225864006567. The next prime is 23225864006651. The reversal of 23225864006640 is 4660046852232.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 23225864006640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13178047 + ... + 14836193.

Almost surely, 2^{23225864006640} is an apocalyptic number.

23225864006640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23225864006640 is an abundant number, since it is smaller than the sum of its proper divisors (48775591498128).

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

23225864006640 is a wasteful number, since it uses less digits than its factorization.

23225864006640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716526 (or 1716520 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 23225864006640 in words is "twenty-three trillion, two hundred twenty-five billion, eight hundred sixty-four million, six thousand, six hundred forty".