5166070666 has 4 divisors (see below), whose sum is σ = 7749106002. Its totient is φ = 2583035332.

The previous prime is 5166070661. The next prime is 5166070667. The reversal of 5166070666 is 6660706615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6660706615 = 5 ⋅1332141323.

It can be written as a sum of positive squares in only one way, i.e., 3784833441 + 1381237225 = 61521^2 + 37165^2 .

It is a super-2 number, since 2×5166070666² = 53376572252211367112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5166070661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1291517665 + ... + 1291517668.

Almost surely, 2^5166070666 is an apocalyptic number.

5166070666 is a deficient number, since it is larger than the sum of its proper divisors (2583035336).

5166070666 is a wasteful number, since it uses less digits than its factorization.

5166070666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583035335.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 5166070666 is about 71875.3828928932. The cubic root of 5166070666 is about 1728.7019193165.

The spelling of 5166070666 in words is "five billion, one hundred sixty-six million, seventy thousand, six hundred sixty-six".