222643607472 has 400 divisors, whose sum is σ = 759959921952. Its totient is φ = 62038794240.

The previous prime is 222643607471. The next prime is 222643607503. The reversal of 222643607472 is 274706346222.

222643607472 is a `hidden beast` number, since 22 + 264 + 360 + 7 + 4 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (222643607471) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 51333688 + ... + 51338024.

Almost surely, 2^222643607472 is an apocalyptic number.

222643607472 is a gapful number since it is divisible by the number (22) 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 222643607472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379979960976).

222643607472 is an abundant number, since it is smaller than the sum of its proper divisors (537316314480).

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

222643607472 is a wasteful number, since it uses less digits than its factorization.

222643607472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658 (or 4643 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 45.

The spelling of 222643607472 in words is "two hundred twenty-two billion, six hundred forty-three million, six hundred seven thousand, four hundred seventy-two".