66226204 has 36 divisors (see below), whose sum is σ = 128098152. Its totient is φ = 29935840.

The previous prime is 66226201. The next prime is 66226207. The reversal of 66226204 is 40262266.

It is an interprime number because it is at equal distance from previous prime (66226201) and next prime (66226207).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66226201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141579 + ... + 142045.

It is an arithmetic number, because the mean of its divisors is an integer number (3558282).

Almost surely, 2^66226204 is an apocalyptic number.

It is an amenable number.

66226204 is a deficient number, since it is larger than the sum of its proper divisors (61871948).

66226204 is a wasteful number, since it uses less digits than its factorization.

66226204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 66226204 is about 8137.9483901042. The cubic root of 66226204 is about 404.5851648310.

It can be divided in two parts, 66226 and 204, that added together give a triangular number (66430 = T₃₆₄).

The spelling of 66226204 in words is "sixty-six million, two hundred twenty-six thousand, two hundred four".