8016666740 has 12 divisors (see below), whose sum is σ = 16835000196. Its totient is φ = 3206666688.

The previous prime is 8016666731. The next prime is 8016666799. The reversal of 8016666740 is 476666108.

It can be written as a sum of positive squares in 2 ways, for example, as 1853474704 + 6163192036 = 43052^2 + 78506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8016666691 and 8016666700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200416649 + ... + 200416688.

It is an arithmetic number, because the mean of its divisors is an integer number (1402916683).

Almost surely, 2^8016666740 is an apocalyptic number.

It is an amenable number.

8016666740 is an abundant number, since it is smaller than the sum of its proper divisors (8818333456).

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

8016666740 is a wasteful number, since it uses less digits than its factorization.

8016666740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400833346 (or 400833344 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 8016666740 is about 89535.8405332747. The cubic root of 8016666740 is about 2001.3879316001.

The spelling of 8016666740 in words is "eight billion, sixteen million, six hundred sixty-six thousand, seven hundred forty".