8000666740 has 48 divisors (see below), whose sum is σ = 18960842880. Its totient is φ = 2809009280.

The previous prime is 8000666719. The next prime is 8000666741. The reversal of 8000666740 is 476660008.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8000666740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8000666741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620632 + ... + 633391.

It is an arithmetic number, because the mean of its divisors is an integer number (395017560).

Almost surely, 2^8000666740 is an apocalyptic number.

It is an amenable number.

8000666740 is an abundant number, since it is smaller than the sum of its proper divisors (10960176140).

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

8000666740 is a wasteful number, since it uses less digits than its factorization.

8000666740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254072 (or 1254070 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 8000666740 is about 89446.4462122448. The cubic root of 8000666740 is about 2000.0555601232.

The spelling of 8000666740 in words is "eight billion, six hundred sixty-six thousand, seven hundred forty".