666081336 has 16 divisors (see below), whose sum is σ = 1665203400. Its totient is φ = 222027104.

The previous prime is 666081329. The next prime is 666081341. The reversal of 666081336 is 633180666.

666081336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 666081294 and 666081303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13876671 + ... + 13876718.

Almost surely, 2^666081336 is an apocalyptic number.

It is an amenable number.

666081336 is an abundant number, since it is smaller than the sum of its proper divisors (999122064).

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

666081336 is a wasteful number, since it uses less digits than its factorization.

666081336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27753398 (or 27753394 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 666081336 is about 25808.5516060084. The cubic root of 666081336 is about 873.3247231571.

The spelling of 666081336 in words is "six hundred sixty-six million, eighty-one thousand, three hundred thirty-six".