7666180865 has 16 divisors (see below), whose sum is σ = 10518752640. Its totient is φ = 5254243200.

The previous prime is 7666180829. The next prime is 7666180897. The reversal of 7666180865 is 5680816667.

It is not a de Polignac number, because 7666180865 - 2⁶ = 7666180801 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20690 + ... + 125540.

It is an arithmetic number, because the mean of its divisors is an integer number (657422040).

Almost surely, 2^7666180865 is an apocalyptic number.

It is an amenable number.

7666180865 is a deficient number, since it is larger than the sum of its proper divisors (2852571775).

7666180865 is a wasteful number, since it uses less digits than its factorization.

7666180865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106952.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 7666180865 is about 87556.7294101373. The cubic root of 7666180865 is about 1971.7855837905.

The spelling of 7666180865 in words is "seven billion, six hundred sixty-six million, one hundred eighty thousand, eight hundred sixty-five".