8066820740 has 36 divisors (see below), whose sum is σ = 18620361228. Its totient is φ = 2933388480.

The previous prime is 8066820733. The next prime is 8066820763. The reversal of 8066820740 is 470286608.

It can be written as a sum of positive squares in 2 ways, for example, as 3546678916 + 4520141824 = 59554^2 + 67232^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1664279 + ... + 1669118.

Almost surely, 2^8066820740 is an apocalyptic number.

It is an amenable number.

8066820740 is an abundant number, since it is smaller than the sum of its proper divisors (10553540488).

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

8066820740 is a wasteful number, since it uses less digits than its factorization.

8066820740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333428 (or 3333415 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 8066820740 is about 89815.4816276125. The cubic root of 8066820740 is about 2005.5529630318.

The spelling of 8066820740 in words is "eight billion, sixty-six million, eight hundred twenty thousand, seven hundred forty".