666673076 has 6 divisors (see below), whose sum is σ = 1166677890. Its totient is φ = 333336536.

The previous prime is 666673057. The next prime is 666673123. The reversal of 666673076 is 670376666.

It can be written as a sum of positive squares in only one way, i.e., 666672400 + 676 = 25820^2 + 26^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 666673076.

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 as a sum of consecutive naturals, namely, 83334131 + ... + 83334138.

It is an arithmetic number, because the mean of its divisors is an integer number (194446315).

Almost surely, 2^666673076 is an apocalyptic number.

It is an amenable number.

666673076 is a deficient number, since it is larger than the sum of its proper divisors (500004814).

666673076 is a wasteful number, since it uses less digits than its factorization.

666673076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166668273 (or 166668271 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 47.

The square root of 666673076 is about 25820.0130906241. The cubic root of 666673076 is about 873.5832642615.

The spelling of 666673076 in words is "six hundred sixty-six million, six hundred seventy-three thousand, seventy-six".