23020645299456 has 432 divisors, whose sum is σ = 74200800416064. Its totient is φ = 6311868530688.

The previous prime is 23020645299293. The next prime is 23020645299577. The reversal of 23020645299456 is 65499254602032.

It is a super-2 number, since 2×23020645299456² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23020645299396 and 23020645299405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101530791 + ... + 101757273.

Almost surely, 2^{23020645299456} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23020645299456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37100400208032).

23020645299456 is an abundant number, since it is smaller than the sum of its proper divisors (51180155116608).

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

23020645299456 is a wasteful number, since it uses less digits than its factorization.

23020645299456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226626 (or 226605 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 57.

The spelling of 23020645299456 in words is "twenty-three trillion, twenty billion, six hundred forty-five million, two hundred ninety-nine thousand, four hundred fifty-six".