8000066736 has 100 divisors (see below), whose sum is σ = 24373247800. Its totient is φ = 2526329088.

The previous prime is 8000066731. The next prime is 8000066807. The reversal of 8000066736 is 6376600008.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 8000066736.

It is not an unprimeable number, because it can be changed into a prime (8000066731) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 137821 + ... + 187068.

It is an arithmetic number, because the mean of its divisors is an integer number (243732478).

Almost surely, 2^8000066736 is an apocalyptic number.

It is an amenable number.

8000066736 is an abundant number, since it is smaller than the sum of its proper divisors (16373181064).

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

8000066736 is a wasteful number, since it uses less digits than its factorization.

8000066736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324928 (or 324913 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 8000066736 is about 89443.0921647949. The cubic root of 8000066736 is about 2000.0055613179.

The spelling of 8000066736 in words is "eight billion, sixty-six thousand, seven hundred thirty-six".