66422986 has 16 divisors (see below), whose sum is σ = 114025536. Its totient is φ = 28427616.

The previous prime is 66422947. The next prime is 66422999. The reversal of 66422986 is 68922466.

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, 8710 + ... + 14446.

It is an arithmetic number, because the mean of its divisors is an integer number (7126596).

Almost surely, 2^66422986 is an apocalyptic number.

66422986 is a deficient number, since it is larger than the sum of its proper divisors (47602550).

66422986 is a wasteful number, since it uses less digits than its factorization.

66422986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573.

The product of its digits is 248832, while the sum is 43.

The square root of 66422986 is about 8150.0298158964. The cubic root of 66422986 is about 404.9854915292.

The spelling of 66422986 in words is "sixty-six million, four hundred twenty-two thousand, nine hundred eighty-six".