664222355 has 8 divisors (see below), whose sum is σ = 800009664. Its totient is φ = 529416000.

The previous prime is 664222343. The next prime is 664222367. The reversal of 664222355 is 553222466.

It is an interprime number because it is at equal distance from previous prime (664222343) and next prime (664222367).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 664222355 - 2⁶ = 664222291 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 243746 + ... + 246455.

It is an arithmetic number, because the mean of its divisors is an integer number (100001208).

Almost surely, 2^664222355 is an apocalyptic number.

664222355 is a deficient number, since it is larger than the sum of its proper divisors (135787309).

664222355 is a wasteful number, since it uses less digits than its factorization.

664222355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490477.

The product of its digits is 86400, while the sum is 35.

The square root of 664222355 is about 25772.5116160610. The cubic root of 664222355 is about 872.5115057746.

The spelling of 664222355 in words is "six hundred sixty-four million, two hundred twenty-two thousand, three hundred fifty-five".