665026463 has 8 divisors (see below), whose sum is σ = 688262400. Its totient is φ = 641810848.

The previous prime is 665026459. The next prime is 665026513. The reversal of 665026463 is 364620566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 665026463 - 2² = 665026459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665026963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95618 + ... + 102336.

It is an arithmetic number, because the mean of its divisors is an integer number (86032800).

Almost surely, 2^665026463 is an apocalyptic number.

665026463 is a deficient number, since it is larger than the sum of its proper divisors (23235937).

665026463 is a wasteful number, since it uses less digits than its factorization.

665026463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10161.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 665026463 is about 25788.1070069131. The cubic root of 665026463 is about 872.8634514498.

The spelling of 665026463 in words is "six hundred sixty-five million, twenty-six thousand, four hundred sixty-three".