66011301 has 16 divisors (see below), whose sum is σ = 102942400. Its totient is φ = 41691024.

The previous prime is 66011291. The next prime is 66011303. The reversal of 66011301 is 10311066.

66011301 is a `hidden beast` number, since 660 + 1 + 1 + 3 + 0 + 1 = 666.

It is not a de Polignac number, because 66011301 - 2¹⁰ = 66010277 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 (66011303) 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, 63826 + ... + 64851.

It is an arithmetic number, because the mean of its divisors is an integer number (6433900).

Almost surely, 2^66011301 is an apocalyptic number.

It is an amenable number.

66011301 is a deficient number, since it is larger than the sum of its proper divisors (36931099).

66011301 is a wasteful number, since it uses less digits than its factorization.

66011301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128705 (or 128699 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 66011301 is about 8124.7339033349. The cubic root of 66011301 is about 404.1470664294.

Adding to 66011301 its reverse (10311066), we get a palindrome (76322367).

The spelling of 66011301 in words is "sixty-six million, eleven thousand, three hundred one".