10646405265 has 16 divisors (see below), whose sum is σ = 17037314496. Its totient is φ = 5677060800.

The previous prime is 10646405233. The next prime is 10646405281. The reversal of 10646405265 is 56250464601.

It is not a de Polignac number, because 10646405265 - 2⁵ = 10646405233 is a prime.

It is a super-2 number, since 2×10646405265² (a number of 21 digits) contains 22 as substring.

It is a Curzon 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, 26350 + ... + 148280.

It is an arithmetic number, because the mean of its divisors is an integer number (1064832156).

Almost surely, 2^10646405265 is an apocalyptic number.

10646405265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10646405265 is a deficient number, since it is larger than the sum of its proper divisors (6390909231).

10646405265 is a wasteful number, since it uses less digits than its factorization.

10646405265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127760.

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 10646405265 its reverse (56250464601), we get a palindrome (66896869866).

The spelling of 10646405265 in words is "ten billion, six hundred forty-six million, four hundred five thousand, two hundred sixty-five".