664305055 has 8 divisors (see below), whose sum is σ = 797806800. Its totient is φ = 531016896.

The previous prime is 664305029. The next prime is 664305091. The reversal of 664305055 is 550503466.

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 664305055 - 2⁵ = 664305023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 664305055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46470 + ... + 59059.

It is an arithmetic number, because the mean of its divisors is an integer number (99725850).

Almost surely, 2^664305055 is an apocalyptic number.

664305055 is a deficient number, since it is larger than the sum of its proper divisors (133501745).

664305055 is a wasteful number, since it uses less digits than its factorization.

664305055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106793.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 664305055 is about 25774.1159887202. The cubic root of 664305055 is about 872.5477153895.

The spelling of 664305055 in words is "six hundred sixty-four million, three hundred five thousand, fifty-five".