66060213 has 16 divisors (see below), whose sum is σ = 89337600. Its totient is φ = 43416000.

The previous prime is 66060187. The next prime is 66060217. The reversal of 66060213 is 31206066.

It is not a de Polignac number, because 66060213 - 2⁶ = 66060149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66060217) 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, 87588 + ... + 88338.

It is an arithmetic number, because the mean of its divisors is an integer number (5583600).

Almost surely, 2^66060213 is an apocalyptic number.

It is an amenable number.

66060213 is a deficient number, since it is larger than the sum of its proper divisors (23277387).

66060213 is a wasteful number, since it uses less digits than its factorization.

66060213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 66060213 is about 8127.7434137650. The cubic root of 66060213 is about 404.2468612658.

Adding to 66060213 its reverse (31206066), we get a palindrome (97266279).

The spelling of 66060213 in words is "sixty-six million, sixty thousand, two hundred thirteen".