22646247490944 has 1024 divisors, whose sum is σ = 87510962995200. Its totient is φ = 5590322749440.

The previous prime is 22646247490883. The next prime is 22646247491057. The reversal of 22646247490944 is 44909474264622.

22646247490944 is a `hidden beast` number, since 2 + 2 + 6 + 4 + 62 + 47 + 490 + 9 + 44 = 666.

It is a super-2 number, since 2×22646247490944² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 960918649 + ... + 960942215.

It is an arithmetic number, because the mean of its divisors is an integer number (85459924800).

Almost surely, 2^{22646247490944} is an apocalyptic number.

22646247490944 is a gapful number since it is divisible by the number (24) 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 22646247490944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43755481497600).

22646247490944 is an abundant number, since it is smaller than the sum of its proper divisors (64864715504256).

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

22646247490944 is a wasteful number, since it uses less digits than its factorization.

22646247490944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23788 (or 23770 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 63.

The spelling of 22646247490944 in words is "twenty-two trillion, six hundred forty-six billion, two hundred forty-seven million, four hundred ninety thousand, nine hundred forty-four".