66226118 has 16 divisors (see below), whose sum is σ = 120209184. Its totient is φ = 26712960.

The previous prime is 66226109. The next prime is 66226123. The reversal of 66226118 is 81162266.

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, 138893 + ... + 139368.

It is an arithmetic number, because the mean of its divisors is an integer number (7513074).

Almost surely, 2^66226118 is an apocalyptic number.

66226118 is a deficient number, since it is larger than the sum of its proper divisors (53983066).

66226118 is a wasteful number, since it uses less digits than its factorization.

66226118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278287.

The product of its digits is 6912, while the sum is 32.

The square root of 66226118 is about 8137.9431062155. The cubic root of 66226118 is about 404.5849897022.

The spelling of 66226118 in words is "sixty-six million, two hundred twenty-six thousand, one hundred eighteen".