10655263865 has 4 divisors (see below), whose sum is σ = 12786316644. Its totient is φ = 8524211088.

The previous prime is 10655263831. The next prime is 10655263873. The reversal of 10655263865 is 56836255601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56836255601 = 17 ⋅3343309153.

It can be written as a sum of positive squares in 2 ways, for example, as 5638658281 + 5016605584 = 75091^2 + 70828^2 .

It is a cyclic number.

It is not a de Polignac number, because 10655263865 - 2⁸ = 10655263609 is a prime.

It is a super-2 number, since 2×10655263865² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065526382 + ... + 1065526391.

It is an arithmetic number, because the mean of its divisors is an integer number (3196579161).

Almost surely, 2^10655263865 is an apocalyptic number.

It is an amenable number.

10655263865 is a deficient number, since it is larger than the sum of its proper divisors (2131052779).

10655263865 is an equidigital number, since it uses as much as digits as its factorization.

10655263865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131052778.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 10655263865 in words is "ten billion, six hundred fifty-five million, two hundred sixty-three thousand, eight hundred sixty-five".