260650663065 has 96 divisors (see below), whose sum is σ = 515388575520. Its totient is φ = 120720457728.

The previous prime is 260650663057. The next prime is 260650663087. The reversal of 260650663065 is 560366056062.

260650663065 is a `hidden beast` number, since 2 + 6 + 0 + 6 + 5 + 0 + 6 + 630 + 6 + 5 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 152683218009 + 107967445056 = 390747^2 + 328584^2 .

It is not a de Polignac number, because 260650663065 - 2³ = 260650663057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 260650663065.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 33102969 + ... + 33110841.

It is an arithmetic number, because the mean of its divisors is an integer number (5368630995).

Almost surely, 2^260650663065 is an apocalyptic number.

It is an amenable number.

260650663065 is a deficient number, since it is larger than the sum of its proper divisors (254737912455).

260650663065 is a wasteful number, since it uses less digits than its factorization.

260650663065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11243 (or 11240 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 260650663065 in words is "two hundred sixty billion, six hundred fifty million, six hundred sixty-three thousand, sixty-five".