666000022 has 16 divisors (see below), whose sum is σ = 1048010400. Its totient is φ = 316986880.

The previous prime is 666000019. The next prime is 666000043. The reversal of 666000022 is 220000666.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 665999957 and 666000002.

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, 76747 + ... + 84982.

It is an arithmetic number, because the mean of its divisors is an integer number (65500650).

Almost surely, 2^666000022 is an apocalyptic number.

666000022 is a deficient number, since it is larger than the sum of its proper divisors (382010378).

666000022 is a wasteful number, since it uses less digits than its factorization.

666000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161831.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 666000022 is about 25806.9762273692. The cubic root of 666000022 is about 873.2891837454.

Adding to 666000022 its reverse (220000666), we get a palindrome (886000688).

The spelling of 666000022 in words is "six hundred sixty-six million, twenty-two", and thus it is an aban number.