5051312666 has 16 divisors (see below), whose sum is σ = 7672530600. Its totient is φ = 2493969408.

The previous prime is 5051312653. The next prime is 5051312677. The reversal of 5051312666 is 6662131505.

It can be written as a sum of positive squares in 4 ways, for example, as 315808441 + 4735504225 = 17771^2 + 68815^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19250 + ... + 102338.

Almost surely, 2^5051312666 is an apocalyptic number.

5051312666 is a deficient number, since it is larger than the sum of its proper divisors (2621217934).

5051312666 is a wasteful number, since it uses less digits than its factorization.

5051312666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83473.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 5051312666 is about 71072.5873034041. The cubic root of 5051312666 is about 1715.8056111908.

The spelling of 5051312666 in words is "five billion, fifty-one million, three hundred twelve thousand, six hundred sixty-six".