8066666700 has 108 divisors (see below), whose sum is σ = 25872654808. Its totient is φ = 2101075200.

The previous prime is 8066666693. The next prime is 8066666731. The reversal of 8066666700 is 76666608.

It is a happy number.

It is a super-2 number, since 2×8066666700² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65521 + ... + 142920.

Almost surely, 2^8066666700 is an apocalyptic number.

It is an amenable number.

8066666700 is an abundant number, since it is smaller than the sum of its proper divisors (17805988108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8066666700 is a wasteful number, since it uses less digits than its factorization.

8066666700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208504 (or 208494 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 8066666700 is about 89814.6240876173. The cubic root of 8066666700 is about 2005.5401972696.

The spelling of 8066666700 in words is "eight billion, sixty-six million, six hundred sixty-six thousand, seven hundred".