8535842666 has 16 divisors (see below), whose sum is σ = 13930824264. Its totient is φ = 3899003904.

The previous prime is 8535842621. The next prime is 8535842683. The reversal of 8535842666 is 6662485358.

It can be written as a sum of positive squares in 4 ways, for example, as 4003725625 + 4532117041 = 63275^2 + 67321^2 .

It is a super-2 number, since 2×8535842666² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1689755 + ... + 1694798.

Almost surely, 2^8535842666 is an apocalyptic number.

8535842666 is a deficient number, since it is larger than the sum of its proper divisors (5394981598).

8535842666 is a wasteful number, since it uses less digits than its factorization.

8535842666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384665.

The product of its digits is 8294400, while the sum is 53.

The square root of 8535842666 is about 92389.6242334603. The cubic root of 8535842666 is about 2043.6921048032.

The spelling of 8535842666 in words is "eight billion, five hundred thirty-five million, eight hundred forty-two thousand, six hundred sixty-six".