8016666722 has 8 divisors (see below), whose sum is σ = 12094509276. Its totient is φ = 3985163632.

The previous prime is 8016666683. The next prime is 8016666731. The reversal of 8016666722 is 2276666108.

It can be written as a sum of positive squares in 2 ways, for example, as 8015799961 + 866761 = 89531^2 + 931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11584433 + ... + 11585124.

Almost surely, 2^8016666722 is an apocalyptic number.

8016666722 is a deficient number, since it is larger than the sum of its proper divisors (4077842554).

8016666722 is a wasteful number, since it uses less digits than its factorization.

8016666722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23169732.

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

The square root of 8016666722 is about 89535.8404327563. The cubic root of 8016666722 is about 2001.3879301022.

The spelling of 8016666722 in words is "eight billion, sixteen million, six hundred sixty-six thousand, seven hundred twenty-two".