7695666816 has 64 divisors (see below), whose sum is σ = 20700451200. Its totient is φ = 2532741120.

The previous prime is 7695666799. The next prime is 7695666841. The reversal of 7695666816 is 6186665967.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 7695666816.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96505 + ... + 157176.

It is an arithmetic number, because the mean of its divisors is an integer number (323444550).

Almost surely, 2^7695666816 is an apocalyptic number.

It is an amenable number.

7695666816 is an abundant number, since it is smaller than the sum of its proper divisors (13004784384).

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

7695666816 is a wasteful number, since it uses less digits than its factorization.

7695666816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253777 (or 253765 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The square root of 7695666816 is about 87724.9497919492. The cubic root of 7695666816 is about 1974.3103347260.

The spelling of 7695666816 in words is "seven billion, six hundred ninety-five million, six hundred sixty-six thousand, eight hundred sixteen".