673158066 has 32 divisors (see below), whose sum is σ = 1605547008. Its totient is φ = 183968400.

The previous prime is 673158053. The next prime is 673158091. The reversal of 673158066 is 660851376.

673158066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347460 + ... + 349391.

It is an arithmetic number, because the mean of its divisors is an integer number (50173344).

Almost surely, 2^673158066 is an apocalyptic number.

673158066 is an abundant number, since it is smaller than the sum of its proper divisors (932388942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673158066 is a wasteful number, since it uses less digits than its factorization.

673158066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696886.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 673158066 is about 25945.2898615529. The cubic root of 673158066 is about 876.4066912298.

The spelling of 673158066 in words is "six hundred seventy-three million, one hundred fifty-eight thousand, sixty-six".