222360666 has 64 divisors (see below), whose sum is σ = 501258240. Its totient is φ = 65180160.

The previous prime is 222360653. The next prime is 222360673. The reversal of 222360666 is 666063222.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 31 ways as a sum of consecutive naturals, for example, 300525 + ... + 301263.

It is an arithmetic number, because the mean of its divisors is an integer number (7832160).

Almost surely, 2^222360666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222360666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250629120).

222360666 is an abundant number, since it is smaller than the sum of its proper divisors (278897574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222360666 is a wasteful number, since it uses less digits than its factorization.

222360666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 222360666 is about 14911.7626724677. The cubic root of 222360666 is about 605.8326226851.

The spelling of 222360666 in words is "two hundred twenty-two million, three hundred sixty thousand, six hundred sixty-six".