22636321404450 has 576 divisors, whose sum is σ = 66265931208960. Its totient is φ = 5067858216960.

The previous prime is 22636321404409. The next prime is 22636321404461. The reversal of 22636321404450 is 5440412363622.

It is a happy number.

It is a super-2 number, since 2×22636321404450² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 5838615912 + ... + 5838619788.

It is an arithmetic number, because the mean of its divisors is an integer number (115045019460).

Almost surely, 2^{22636321404450} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22636321404450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33132965604480).

22636321404450 is an abundant number, since it is smaller than the sum of its proper divisors (43629609804510).

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

22636321404450 is a wasteful number, since it uses less digits than its factorization.

22636321404450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091 (or 4019 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 22636321404450 in words is "twenty-two trillion, six hundred thirty-six billion, three hundred twenty-one million, four hundred four thousand, four hundred fifty".