7765056065 has 16 divisors (see below), whose sum is σ = 10066524048. Its totient is φ = 5716091136.

The previous prime is 7765056029. The next prime is 7765056109. The reversal of 7765056065 is 5606505677.

It can be written as a sum of positive squares in 8 ways, for example, as 2197359376 + 5567696689 = 46876^2 + 74617^2 .

It is a cyclic number.

It is not a de Polignac number, because 7765056065 - 2¹⁶ = 7764990529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167822 + ... + 209031.

It is an arithmetic number, because the mean of its divisors is an integer number (629157753).

Almost surely, 2^7765056065 is an apocalyptic number.

It is an amenable number.

7765056065 is a deficient number, since it is larger than the sum of its proper divisors (2301467983).

7765056065 is a wasteful number, since it uses less digits than its factorization.

7765056065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377188.

The product of its (nonzero) digits is 1323000, while the sum is 47.

The square root of 7765056065 is about 88119.5555197596. Note that the first 4 decimals coincide. The cubic root of 7765056065 is about 1980.2264871176.

The spelling of 7765056065 in words is "seven billion, seven hundred sixty-five million, fifty-six thousand, sixty-five".