225016566664 has 16 divisors (see below), whose sum is σ = 421950095820. Its totient is φ = 112496541120.

The previous prime is 225016566647. The next prime is 225016566703. The reversal of 225016566664 is 466665610522.

It can be written as a sum of positive squares in 2 ways, for example, as 199049822500 + 25966744164 = 446150^2 + 161142^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1386067 + ... + 1539874.

Almost surely, 2^225016566664 is an apocalyptic number.

It is an amenable number.

225016566664 is a deficient number, since it is larger than the sum of its proper divisors (196933529156).

225016566664 is a wasteful number, since it uses less digits than its factorization.

225016566664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935560 (or 2935556 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 225016566664 in words is "two hundred twenty-five billion, sixteen million, five hundred sixty-six thousand, six hundred sixty-four".