2217572668 has 6 divisors (see below), whose sum is σ = 3880752176. Its totient is φ = 1108786332.

The previous prime is 2217572641. The next prime is 2217572671. The reversal of 2217572668 is 8662757122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277196580 + ... + 277196587.

Almost surely, 2^2217572668 is an apocalyptic number.

It is an amenable number.

2217572668 is a deficient number, since it is larger than the sum of its proper divisors (1663179508).

2217572668 is a wasteful number, since it uses less digits than its factorization.

2217572668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554393171 (or 554393169 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 2217572668 is about 47091.1102863375. The cubic root of 2217572668 is about 1304.0451254348.

The spelling of 2217572668 in words is "two billion, two hundred seventeen million, five hundred seventy-two thousand, six hundred sixty-eight".