668022022 has 16 divisors (see below), whose sum is σ = 1009607040. Its totient is φ = 331494912.

The previous prime is 668022011. The next prime is 668022029. The reversal of 668022022 is 220220866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668022029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183088 + ... + 186700.

It is an arithmetic number, because the mean of its divisors is an integer number (63100440).

Almost surely, 2^668022022 is an apocalyptic number.

668022022 is a deficient number, since it is larger than the sum of its proper divisors (341585018).

668022022 is a wasteful number, since it uses less digits than its factorization.

668022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 668022022 is about 25846.1219915097. The cubic root of 668022022 is about 874.1720699706.

Adding to 668022022 its reverse (220220866), we get a palindrome (888242888).

The spelling of 668022022 in words is "six hundred sixty-eight million, twenty-two thousand, twenty-two".