66570325207 has 4 divisors (see below), whose sum is σ = 66580493616. Its totient is φ = 66560156800.

The previous prime is 66570325201. The next prime is 66570325219. The reversal of 66570325207 is 70252307566.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66570325207 - 2¹¹ = 66570323159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66570325201) 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, 5074378 + ... + 5087479.

It is an arithmetic number, because the mean of its divisors is an integer number (16645123404).

Almost surely, 2^66570325207 is an apocalyptic number.

66570325207 is a deficient number, since it is larger than the sum of its proper divisors (10168409).

66570325207 is a wasteful number, since it uses less digits than its factorization.

66570325207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10168408.

The product of its (nonzero) digits is 529200, while the sum is 43.

The spelling of 66570325207 in words is "sixty-six billion, five hundred seventy million, three hundred twenty-five thousand, two hundred seven".