7327860666 has 64 divisors (see below), whose sum is σ = 17085862656. Its totient is φ = 2051712000.

The previous prime is 7327860637. The next prime is 7327860713. The reversal of 7327860666 is 6660687237.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2672056 + ... + 2674796.

It is an arithmetic number, because the mean of its divisors is an integer number (266966604).

Almost surely, 2^7327860666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7327860666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8542931328).

7327860666 is an abundant number, since it is smaller than the sum of its proper divisors (9758001990).

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

7327860666 is a wasteful number, since it uses less digits than its factorization.

7327860666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007.

The product of its (nonzero) digits is 3048192, while the sum is 51.

The square root of 7327860666 is about 85602.9244009806. The cubic root of 7327860666 is about 1942.3421481757.

The spelling of 7327860666 in words is "seven billion, three hundred twenty-seven million, eight hundred sixty thousand, six hundred sixty-six".