66670022 has 16 divisors (see below), whose sum is σ = 106284960. Its totient is φ = 31256448.

The previous prime is 66670013. The next prime is 66670033. The reversal of 66670022 is 22007666.

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, 5879 + ... + 12957.

It is an arithmetic number, because the mean of its divisors is an integer number (6642810).

Almost surely, 2^66670022 is an apocalyptic number.

66670022 is a deficient number, since it is larger than the sum of its proper divisors (39614938).

66670022 is a wasteful number, since it uses less digits than its factorization.

66670022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7375.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 66670022 is about 8165.1712780566. The cubic root of 66670022 is about 405.4869355291.

Adding to 66670022 its reverse (22007666), we get a palindrome (88677688).

The spelling of 66670022 in words is "sixty-six million, six hundred seventy thousand, twenty-two".