1720222366 has 12 divisors (see below), whose sum is σ = 2600859888. Its totient is φ = 853322652.

The previous prime is 1720222327. The next prime is 1720222369. The reversal of 1720222366 is 6632220271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720222369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5595 + ... + 58921.

It is an arithmetic number, because the mean of its divisors is an integer number (216738324).

Almost surely, 2^1720222366 is an apocalyptic number.

1720222366 is a deficient number, since it is larger than the sum of its proper divisors (880637522).

1720222366 is an equidigital number, since it uses as much as digits as its factorization.

1720222366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53583 (or 53456 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 1720222366 is about 41475.5634801988. The cubic root of 1720222366 is about 1198.1969138498.

The spelling of 1720222366 in words is "one billion, seven hundred twenty million, two hundred twenty-two thousand, three hundred sixty-six".