66207001 has 16 divisors (see below), whose sum is σ = 79974400. Its totient is φ = 53541648.

The previous prime is 66206989. The next prime is 66207019. The reversal of 66207001 is 10070266.

It is a cyclic number.

It is not a de Polignac number, because 66207001 - 2⁵ = 66206969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66207091) 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, 36760 + ... + 38518.

It is an arithmetic number, because the mean of its divisors is an integer number (4998400).

Almost surely, 2^66207001 is an apocalyptic number.

It is an amenable number.

66207001 is a deficient number, since it is larger than the sum of its proper divisors (13767399).

66207001 is a wasteful number, since it uses less digits than its factorization.

66207001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068.

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

The square root of 66207001 is about 8136.7684617420. The cubic root of 66207001 is about 404.5460564444.

Adding to 66207001 its reverse (10070266), we get a palindrome (76277267).

The spelling of 66207001 in words is "sixty-six million, two hundred seven thousand, one".