22536465444864 has 624 divisors, whose sum is σ = 80429864020480. Its totient is φ = 5935180677120.

The previous prime is 22536465444811. The next prime is 22536465444919. The reversal of 22536465444864 is 46844456463522.

It is a happy number.

22536465444864 is a `hidden beast` number, since 2 + 2 + 5 + 3 + 6 + 4 + 6 + 544 + 4 + 86 + 4 = 666.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181345629 + ... + 181469859.

Almost surely, 2^{22536465444864} is an apocalyptic number.

22536465444864 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 22536465444864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40214932010240).

22536465444864 is an abundant number, since it is smaller than the sum of its proper divisors (57893398575616).

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

22536465444864 is a wasteful number, since it uses less digits than its factorization.

22536465444864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124324 (or 124299 counting only the distinct ones).

The product of its digits is 530841600, while the sum is 63.

The spelling of 22536465444864 in words is "twenty-two trillion, five hundred thirty-six billion, four hundred sixty-five million, four hundred forty-four thousand, eight hundred sixty-four".