22421354646 has 64 divisors (see below), whose sum is σ = 46488185856. Its totient is φ = 7203686400.

The previous prime is 22421354629. The next prime is 22421354647. The reversal of 22421354646 is 64645312422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421354647) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 11610301 + ... + 11612231.

It is an arithmetic number, because the mean of its divisors is an integer number (726377904).

Almost surely, 2^22421354646 is an apocalyptic number.

22421354646 is an abundant number, since it is smaller than the sum of its proper divisors (24066831210).

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

22421354646 is a wasteful number, since it uses less digits than its factorization.

22421354646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437.

The product of its digits is 276480, while the sum is 39.

The spelling of 22421354646 in words is "twenty-two billion, four hundred twenty-one million, three hundred fifty-four thousand, six hundred forty-six".