66207226 has 8 divisors (see below), whose sum is σ = 99368640. Its totient is φ = 33084348.

The previous prime is 66207223. The next prime is 66207233. The reversal of 66207226 is 62270266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66207223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4866 + ... + 12493.

It is an arithmetic number, because the mean of its divisors is an integer number (12421080).

Almost surely, 2^66207226 is an apocalyptic number.

66207226 is a deficient number, since it is larger than the sum of its proper divisors (33161414).

66207226 is a wasteful number, since it uses less digits than its factorization.

66207226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19268.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 66207226 is about 8136.7822878580. The cubic root of 66207226 is about 404.5465147180.

The spelling of 66207226 in words is "sixty-six million, two hundred seven thousand, two hundred twenty-six".