22523313250640 has 80 divisors (see below), whose sum is σ = 54914540490000. Its totient is φ = 8579499134976.

The previous prime is 22523313250637. The next prime is 22523313250661. The reversal of 22523313250640 is 4605231332522.

It can be written as a sum of positive squares in 8 ways, for example, as 1786510252816 + 20736802997824 = 1336604^2 + 4553768^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22523313250594 and 22523313250603.

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, 66326015 + ... + 66664734.

It is an arithmetic number, because the mean of its divisors is an integer number (686431756125).

Almost surely, 2^{22523313250640} is an apocalyptic number.

22523313250640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22523313250640 is an abundant number, since it is smaller than the sum of its proper divisors (32391227239360).

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

22523313250640 is a wasteful number, since it uses less digits than its factorization.

22523313250640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132990864 (or 132990858 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 22523313250640 in words is "twenty-two trillion, five hundred twenty-three billion, three hundred thirteen million, two hundred fifty thousand, six hundred forty".