66114213 has 16 divisors (see below), whose sum is σ = 100348416. Its totient is φ = 38326640.

The previous prime is 66114197. The next prime is 66114221. The reversal of 66114213 is 31241166.

It is not a de Polignac number, because 66114213 - 2⁴ = 66114197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66114283) 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, 42795 + ... + 44312.

It is an arithmetic number, because the mean of its divisors is an integer number (6271776).

Almost surely, 2^66114213 is an apocalyptic number.

It is an amenable number.

66114213 is a deficient number, since it is larger than the sum of its proper divisors (34234203).

66114213 is a wasteful number, since it uses less digits than its factorization.

66114213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87144.

The product of its digits is 864, while the sum is 24.

The square root of 66114213 is about 8131.0646904326. The cubic root of 66114213 is about 404.3569799197.

Adding to 66114213 its reverse (31241166), we get a palindrome (97355379).

The spelling of 66114213 in words is "sixty-six million, one hundred fourteen thousand, two hundred thirteen".