665463446 has 4 divisors (see below), whose sum is σ = 998195172. Its totient is φ = 332731722.

The previous prime is 665463433. The next prime is 665463451. The reversal of 665463446 is 644364566.

It is a happy number.

665463446 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.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 665463397 and 665463406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166365860 + ... + 166365863.

It is an arithmetic number, because the mean of its divisors is an integer number (249548793).

Almost surely, 2^665463446 is an apocalyptic number.

665463446 is a deficient number, since it is larger than the sum of its proper divisors (332731726).

665463446 is a wasteful number, since it uses less digits than its factorization.

665463446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332731725.

The product of its digits is 1244160, while the sum is 44.

The square root of 665463446 is about 25796.5781839375. The cubic root of 665463446 is about 873.0545932050.

The spelling of 665463446 in words is "six hundred sixty-five million, four hundred sixty-three thousand, four hundred forty-six".