222665516 has 6 divisors (see below), whose sum is σ = 389664660. Its totient is φ = 111332756.

The previous prime is 222665491. The next prime is 222665539. The reversal of 222665516 is 615566222.

222665516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27833186 + ... + 27833193.

It is an arithmetic number, because the mean of its divisors is an integer number (64944110).

Almost surely, 2^222665516 is an apocalyptic number.

It is an amenable number.

222665516 is a deficient number, since it is larger than the sum of its proper divisors (166999144).

222665516 is a wasteful number, since it uses less digits than its factorization.

222665516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55666383 (or 55666381 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 222665516 is about 14921.9809676866. The cubic root of 222665516 is about 606.1093558890.

The spelling of 222665516 in words is "two hundred twenty-two million, six hundred sixty-five thousand, five hundred sixteen".