66411283 has 4 divisors (see below), whose sum is σ = 66472920. Its totient is φ = 66349648.

The previous prime is 66411277. The next prime is 66411353. The reversal of 66411283 is 38211466.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38211466 = 2 ⋅19105733.

It is a cyclic number.

It is not a de Polignac number, because 66411283 - 2¹³ = 66403091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66411203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29173 + ... + 31366.

It is an arithmetic number, because the mean of its divisors is an integer number (16618230).

Almost surely, 2^66411283 is an apocalyptic number.

66411283 is a deficient number, since it is larger than the sum of its proper divisors (61637).

66411283 is a wasteful number, since it uses less digits than its factorization.

66411283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61636.

The product of its digits is 6912, while the sum is 31.

The square root of 66411283 is about 8149.3118114354. The cubic root of 66411283 is about 404.9617054683.

The spelling of 66411283 in words is "sixty-six million, four hundred eleven thousand, two hundred eighty-three".