66010207 has 6 divisors (see below), whose sum is σ = 69005552. Its totient is φ = 63139692.

The previous prime is 66010187. The next prime is 66010211. The reversal of 66010207 is 70201066.

It is not a de Polignac number, because 66010207 - 2⁷ = 66010079 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 (66010277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61863 + ... + 62920.

Almost surely, 2^66010207 is an apocalyptic number.

66010207 is a deficient number, since it is larger than the sum of its proper divisors (2995345).

66010207 is a wasteful number, since it uses less digits than its factorization.

66010207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124829 (or 124806 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 66010207 is about 8124.6665777741. Note that the first 3 decimals coincide. The cubic root of 66010207 is about 404.1448337848.

The spelling of 66010207 in words is "sixty-six million, ten thousand, two hundred seven".