66061201 has 8 divisors (see below), whose sum is σ = 71574624. Its totient is φ = 60728640.

The previous prime is 66061189. The next prime is 66061207. The reversal of 66061201 is 10216066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66061201 - 2²¹ = 63964049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66061207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44455 + ... + 45916.

It is an arithmetic number, because the mean of its divisors is an integer number (8946828).

Almost surely, 2^66061201 is an apocalyptic number.

It is an amenable number.

66061201 is a deficient number, since it is larger than the sum of its proper divisors (5513423).

66061201 is a wasteful number, since it uses less digits than its factorization.

66061201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90431.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 66061201 is about 8127.8041930155. The cubic root of 66061201 is about 404.2488765682.

Adding to 66061201 its reverse (10216066), we get a palindrome (76277267).

The spelling of 66061201 in words is "sixty-six million, sixty-one thousand, two hundred one".