66572675205 has 16 divisors (see below), whose sum is σ = 106892669760. Its totient is φ = 35379963648.

The previous prime is 66572675177. The next prime is 66572675227. The reversal of 66572675205 is 50257627566.

It is not a de Polignac number, because 66572675205 - 2⁵ = 66572675173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7837060 + ... + 7845549.

It is an arithmetic number, because the mean of its divisors is an integer number (6680791860).

Almost surely, 2^66572675205 is an apocalyptic number.

It is an amenable number.

66572675205 is a deficient number, since it is larger than the sum of its proper divisors (40319994555).

66572675205 is a wasteful number, since it uses less digits than its factorization.

66572675205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15682900.

The product of its (nonzero) digits is 5292000, while the sum is 51.

It can be divided in two parts, 6657 and 2675205, that added together give a palindrome (2681862).

The spelling of 66572675205 in words is "sixty-six billion, five hundred seventy-two million, six hundred seventy-five thousand, two hundred five".