13805116765 has 32 divisors (see below), whose sum is σ = 18543676032. Its totient is φ = 9778944000.

The previous prime is 13805116763. The next prime is 13805116777. The reversal of 13805116765 is 56761150831.

It is not a de Polignac number, because 13805116765 - 2¹ = 13805116763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13805116763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1445205 + ... + 1454725.

It is an arithmetic number, because the mean of its divisors is an integer number (579489876).

Almost surely, 2^13805116765 is an apocalyptic number.

It is an amenable number.

13805116765 is a deficient number, since it is larger than the sum of its proper divisors (4738559267).

13805116765 is a wasteful number, since it uses less digits than its factorization.

13805116765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10221.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 13805116765 in words is "thirteen billion, eight hundred five million, one hundred sixteen thousand, seven hundred sixty-five".