10643311165005 has 16 divisors (see below), whose sum is σ = 18921442071360. Its totient is φ = 5676432621264.

The previous prime is 10643311164991. The next prime is 10643311165007. The reversal of 10643311165005 is 50056111334601.

10643311165005 is a `hidden beast` number, since 1 + 0 + 6 + 4 + 3 + 31 + 116 + 500 + 5 = 666.

It is not a de Polignac number, because 10643311165005 - 2⁴ = 10643311164989 is a prime.

It is a super-2 number, since 2×10643311165005² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10643311165007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39419670847 + ... + 39419671116.

It is an arithmetic number, because the mean of its divisors is an integer number (1182590129460).

Almost surely, 2^{10643311165005} is an apocalyptic number.

10643311165005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10643311165005 is a deficient number, since it is larger than the sum of its proper divisors (8278130906355).

10643311165005 is an equidigital number, since it uses as much as digits as its factorization.

10643311165005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78839341977 (or 78839341971 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

Adding to 10643311165005 its reverse (50056111334601), we get a palindrome (60699422499606).

The spelling of 10643311165005 in words is "ten trillion, six hundred forty-three billion, three hundred eleven million, one hundred sixty-five thousand, five".