222979581812736 has 672 divisors, whose sum is σ = 771469912886400. Its totient is φ = 61986341781504.

The previous prime is 222979581812717. The next prime is 222979581812777. The reversal of 222979581812736 is 637218185979222.

222979581812736 is a `hidden beast` number, since 2 + 2 + 2 + 9 + 7 + 9 + 581 + 8 + 1 + 2 + 7 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 935562895 + ... + 935801201.

It is an arithmetic number, because the mean of its divisors is an integer number (1148020703700).

Almost surely, 2^{222979581812736} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222979581812736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385734956443200).

222979581812736 is an abundant number, since it is smaller than the sum of its proper divisors (548490331073664).

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

222979581812736 is an equidigital number, since it uses as much as digits as its factorization.

222979581812736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238397 (or 238356 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 72.

The spelling of 222979581812736 in words is "two hundred twenty-two trillion, nine hundred seventy-nine billion, five hundred eighty-one million, eight hundred twelve thousand, seven hundred thirty-six".