665650283 has 4 divisors (see below), whose sum is σ = 704806200. Its totient is φ = 626494368.

The previous prime is 665650273. The next prime is 665650301. The reversal of 665650283 is 382056566.

665650283 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 382056566 = 2 ⋅191028283.

It is a cyclic number.

It is not a de Polignac number, because 665650283 - 2¹⁶ = 665584747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 665650283.

It is not an unprimeable number, because it can be changed into a prime (665650273) 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, 19577933 + ... + 19577966.

It is an arithmetic number, because the mean of its divisors is an integer number (176201550).

Almost surely, 2^665650283 is an apocalyptic number.

665650283 is a deficient number, since it is larger than the sum of its proper divisors (39155917).

665650283 is a wasteful number, since it uses less digits than its factorization.

665650283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39155916.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 665650283 is about 25800.1992821761. The cubic root of 665650283 is about 873.1362924771.

The spelling of 665650283 in words is "six hundred sixty-five million, six hundred fifty thousand, two hundred eighty-three".