673516255666 has 8 divisors (see below), whose sum is σ = 1024503600384. Its totient is φ = 332015055540.

The previous prime is 673516255651. The next prime is 673516255669. The reversal of 673516255666 is 666552615376.

673516255666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 673516255666.

It is not an unprimeable number, because it can be changed into a prime (673516255669) 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, 2371535970 + ... + 2371536253.

It is an arithmetic number, because the mean of its divisors is an integer number (128062950048).

Almost surely, 2^673516255666 is an apocalyptic number.

673516255666 is a deficient number, since it is larger than the sum of its proper divisors (350987344718).

673516255666 is a wasteful number, since it uses less digits than its factorization.

673516255666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743072296.

The product of its digits is 40824000, while the sum is 58.

The spelling of 673516255666 in words is "six hundred seventy-three billion, five hundred sixteen million, two hundred fifty-five thousand, six hundred sixty-six".