65760040917 has 80 divisors (see below), whose sum is σ = 108564814512. Its totient is φ = 39493509120.

The previous prime is 65760040901. The next prime is 65760040939. The reversal of 65760040917 is 71904006756.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 87778161 + 65672262756 = 9369^2 + 256266^2 .

It is not a de Polignac number, because 65760040917 - 2⁴ = 65760040901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65760040987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2981233 + ... + 3003209.

Almost surely, 2^65760040917 is an apocalyptic number.

It is an amenable number.

65760040917 is a deficient number, since it is larger than the sum of its proper divisors (42804773595).

65760040917 is a wasteful number, since it uses less digits than its factorization.

65760040917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22100 (or 22091 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 65760040917 in words is "sixty-five billion, seven hundred sixty million, forty thousand, nine hundred seventeen".