66243411 has 12 divisors (see below), whose sum is σ = 103045488. Its totient is φ = 40765104.

The previous prime is 66243383. The next prime is 66243421. The reversal of 66243411 is 11434266.

66243411 is a `hidden beast` number, since 6 + 6 + 243 + 411 = 666.

It is not a de Polignac number, because 66243411 - 2¹³ = 66235219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66243421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282975 + ... + 283208.

It is an arithmetic number, because the mean of its divisors is an integer number (8587124).

Almost surely, 2^66243411 is an apocalyptic number.

66243411 is a deficient number, since it is larger than the sum of its proper divisors (36802077).

66243411 is a wasteful number, since it uses less digits than its factorization.

66243411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566202 (or 566199 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 66243411 is about 8139.0055289329. The cubic root of 66243411 is about 404.6202017885.

Adding to 66243411 its reverse (11434266), we get a palindrome (77677677).

The spelling of 66243411 in words is "sixty-six million, two hundred forty-three thousand, four hundred eleven".