221672318083368 has 128 divisors (see below), whose sum is σ = 561565028787840. Its totient is φ = 72918380160000.

The previous prime is 221672318083343. The next prime is 221672318083373. The reversal of 221672318083368 is 863380813276122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7591243168 + ... + 7591272368.

It is an arithmetic number, because the mean of its divisors is an integer number (4387226787405).

Almost surely, 2^{221672318083368} is an apocalyptic number.

It is an amenable number.

221672318083368 is an abundant number, since it is smaller than the sum of its proper divisors (339892710704472).

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

221672318083368 is an equidigital number, since it uses as much as digits as its factorization.

221672318083368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29820 (or 29614 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 221672318083368 in words is "two hundred twenty-one trillion, six hundred seventy-two billion, three hundred eighteen million, eighty-three thousand, three hundred sixty-eight".