222774617646620 has 24 divisors (see below), whose sum is σ = 503813366062944. Its totient is φ = 82255243438656.

The previous prime is 222774617646601. The next prime is 222774617646649. The reversal of 222774617646620 is 26646716477222.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 428412725984 + ... + 428412726503.

It is an arithmetic number, because the mean of its divisors is an integer number (20992223585956).

Almost surely, 2^{222774617646620} is an apocalyptic number.

222774617646620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222774617646620 is an abundant number, since it is smaller than the sum of its proper divisors (281038748416324).

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

222774617646620 is a wasteful number, since it uses less digits than its factorization.

222774617646620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856825452509 (or 856825452507 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 62.

The spelling of 222774617646620 in words is "two hundred twenty-two trillion, seven hundred seventy-four billion, six hundred seventeen million, six hundred forty-six thousand, six hundred twenty".