66803222 has 16 divisors (see below), whose sum is σ = 103064400. Its totient is φ = 32461440.

The previous prime is 66803213. The next prime is 66803237. The reversal of 66803222 is 22230866.

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, 7322 + ... + 13682.

It is an arithmetic number, because the mean of its divisors is an integer number (6441525).

Almost surely, 2^66803222 is an apocalyptic number.

66803222 is a deficient number, since it is larger than the sum of its proper divisors (36261178).

66803222 is a wasteful number, since it uses less digits than its factorization.

66803222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6511.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 66803222 is about 8173.3238036921. The cubic root of 66803222 is about 405.7567965983.

The spelling of 66803222 in words is "sixty-six million, eight hundred three thousand, two hundred twenty-two".