66075201 has 6 divisors (see below), whose sum is σ = 95441970. Its totient is φ = 44050128.

The previous prime is 66075187. The next prime is 66075223. The reversal of 66075201 is 10257066.

66075201 is a `hidden beast` number, since 6 + 607 + 52 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48233025 + 17842176 = 6945^2 + 4224^2 .

It is not a de Polignac number, because 66075201 - 2⁵ = 66075169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66075241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3670836 + ... + 3670853.

It is an arithmetic number, because the mean of its divisors is an integer number (15906995).

Almost surely, 2^66075201 is an apocalyptic number.

It is an amenable number.

66075201 is a deficient number, since it is larger than the sum of its proper divisors (29366769).

66075201 is a wasteful number, since it uses less digits than its factorization.

66075201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7341695 (or 7341692 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 66075201 is about 8128.6653886109. The cubic root of 66075201 is about 404.2774313247.

The spelling of 66075201 in words is "sixty-six million, seventy-five thousand, two hundred one".