66204064206226 has 8 divisors (see below), whose sum is σ = 99306183924540. Its totient is φ = 33102002898048.

The previous prime is 66204064206223. The next prime is 66204064206251. The reversal of 66204064206226 is 62260246040266.

It can be written as a sum of positive squares in 2 ways, for example, as 38399524660225 + 27804539546001 = 6196735^2 + 5273001^2 .

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 (66204064206223) 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, 11649511 + ... + 16374346.

Almost surely, 2^{66204064206226} is an apocalyptic number.

66204064206226 is a deficient number, since it is larger than the sum of its proper divisors (33102119718314).

66204064206226 is a wasteful number, since it uses less digits than its factorization.

66204064206226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29205068.

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 66204064206226 in words is "sixty-six trillion, two hundred four billion, sixty-four million, two hundred six thousand, two hundred twenty-six".