669252122 has 16 divisors (see below), whose sum is σ = 1251588672. Its totient is φ = 260747520.

The previous prime is 669252119. The next prime is 669252127. The reversal of 669252122 is 221252966.

It is not an unprimeable number, because it can be changed into a prime (669252127) 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, 2172743 + ... + 2173050.

It is an arithmetic number, because the mean of its divisors is an integer number (78224292).

Almost surely, 2^669252122 is an apocalyptic number.

669252122 is a deficient number, since it is larger than the sum of its proper divisors (582336550).

669252122 is a wasteful number, since it uses less digits than its factorization.

669252122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345813.

The product of its digits is 25920, while the sum is 35.

The square root of 669252122 is about 25869.9076534881. The cubic root of 669252122 is about 874.7083096299.

The spelling of 669252122 in words is "six hundred sixty-nine million, two hundred fifty-two thousand, one hundred twenty-two".