222640246660 has 24 divisors (see below), whose sum is σ = 503509481496. Its totient is φ = 82205629440.

The previous prime is 222640246643. The next prime is 222640246669. The reversal of 222640246660 is 66642046222.

It is a happy number.

222640246660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13740059524 + 208900187136 = 117218^2 + 457056^2 .

It is not an unprimeable number, because it can be changed into a prime (222640246669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428154061 + ... + 428154580.

It is an arithmetic number, because the mean of its divisors is an integer number (20979561729).

Almost surely, 2^222640246660 is an apocalyptic number.

222640246660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222640246660 is an abundant number, since it is smaller than the sum of its proper divisors (280869234836).

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

222640246660 is a wasteful number, since it uses less digits than its factorization.

222640246660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856308663 (or 856308661 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 222640246660 in words is "two hundred twenty-two billion, six hundred forty million, two hundred forty-six thousand, six hundred sixty".