66453025206 has 32 divisors (see below), whose sum is σ = 134324206848. Its totient is φ = 21915059040.

The previous prime is 66453025201. The next prime is 66453025231. The reversal of 66453025206 is 60252035466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66453025201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605025 + ... + 706371.

It is an arithmetic number, because the mean of its divisors is an integer number (4197631464).

Almost surely, 2^66453025206 is an apocalyptic number.

66453025206 is an abundant number, since it is smaller than the sum of its proper divisors (67871181642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66453025206 is a wasteful number, since it uses less digits than its factorization.

66453025206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102516.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 66453025206 in words is "sixty-six billion, four hundred fifty-three million, twenty-five thousand, two hundred six".