669222966 has 16 divisors (see below), whose sum is σ = 1384599600. Its totient is φ = 215382048.

The previous prime is 669222949. The next prime is 669222979.

669222966 is nontrivially palindromic in base 10.

669222966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×669222966³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1922881 + ... + 1923228.

It is an arithmetic number, because the mean of its divisors is an integer number (86537475).

Almost surely, 2^669222966 is an apocalyptic number.

669222966 is an abundant number, since it is smaller than the sum of its proper divisors (715376634).

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

669222966 is a wasteful number, since it uses less digits than its factorization.

669222966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846143.

The product of its digits is 839808, while the sum is 48.

The square root of 669222966 is about 25869.3441354821. The cubic root of 669222966 is about 874.6956072093.

The spelling of 669222966 in words is "six hundred sixty-nine million, two hundred twenty-two thousand, nine hundred sixty-six".