65106660485 has 16 divisors (see below), whose sum is σ = 78660197616. Its totient is φ = 51730818048.

The previous prime is 65106660473. The next prime is 65106660527. The reversal of 65106660485 is 58406660156.

It can be written as a sum of positive squares in 8 ways, for example, as 2575156516 + 62531503969 = 50746^2 + 250063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65106660485 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1896029 + ... + 1930061.

It is an arithmetic number, because the mean of its divisors is an integer number (4916262351).

Almost surely, 2^65106660485 is an apocalyptic number.

It is an amenable number.

65106660485 is a deficient number, since it is larger than the sum of its proper divisors (13553537131).

65106660485 is a wasteful number, since it uses less digits than its factorization.

65106660485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36632.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 65106660485 in words is "sixty-five billion, one hundred six million, six hundred sixty thousand, four hundred eighty-five".