260265652663 has 4 divisors (see below), whose sum is σ = 260266921200. Its totient is φ = 260264384128.

The previous prime is 260265652657. The next prime is 260265652679. The reversal of 260265652663 is 366256562062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 260265652663 - 2⁵ = 260265652631 is a prime.

It is a Smith number, since the sum of its digits (49) 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (260265650663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248170 + ... + 762967.

It is an arithmetic number, because the mean of its divisors is an integer number (65066730300).

Almost surely, 2^260265652663 is an apocalyptic number.

260265652663 is a deficient number, since it is larger than the sum of its proper divisors (1268537).

260265652663 is a wasteful number, since it uses less digits than its factorization.

260265652663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268536.

The product of its (nonzero) digits is 4665600, while the sum is 49.

It can be divided in two parts, 26026 and 5652663, that added together give a square (5678689 = 2383²).

The spelling of 260265652663 in words is "two hundred sixty billion, two hundred sixty-five million, six hundred fifty-two thousand, six hundred sixty-three".