666796084 has 6 divisors (see below), whose sum is σ = 1166893154. Its totient is φ = 333398040.

The previous prime is 666796057. The next prime is 666796093. The reversal of 666796084 is 480697666.

It can be written as a sum of positive squares in only one way, i.e., 613651984 + 53144100 = 24772^2 + 7290^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83349507 + ... + 83349514.

Almost surely, 2^666796084 is an apocalyptic number.

It is an amenable number.

666796084 is a deficient number, since it is larger than the sum of its proper divisors (500097070).

666796084 is a wasteful number, since it uses less digits than its factorization.

666796084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166699025 (or 166699023 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 666796084 is about 25822.3950089840. The cubic root of 666796084 is about 873.6369893059.

The spelling of 666796084 in words is "six hundred sixty-six million, seven hundred ninety-six thousand, eighty-four".