673662566 has 8 divisors (see below), whose sum is σ = 1010611200. Its totient is φ = 336792168.

The previous prime is 673662559. The next prime is 673662599. The reversal of 673662566 is 665266376.

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

It is a self number, because there is not a number n which added to its sum of digits gives 673662566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12440 + ... + 38756.

It is an arithmetic number, because the mean of its divisors is an integer number (126326400).

Almost surely, 2^673662566 is an apocalyptic number.

673662566 is a deficient number, since it is larger than the sum of its proper divisors (336948634).

673662566 is a wasteful number, since it uses less digits than its factorization.

673662566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39118.

The product of its digits is 1632960, while the sum is 47.

The square root of 673662566 is about 25955.0104218819. The cubic root of 673662566 is about 876.6255782876.

The spelling of 673662566 in words is "six hundred seventy-three million, six hundred sixty-two thousand, five hundred sixty-six".