10643140161161 has 4 divisors (see below), whose sum is σ = 10869589951872. Its totient is φ = 10416690370452.

The previous prime is 10643140161109. The next prime is 10643140161187. The reversal of 10643140161161 is 16116104134601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10643140161161 is a prime.

It is a super-2 number, since 2×10643140161161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10643140161191) 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, 113224895285 + ... + 113224895378.

It is an arithmetic number, because the mean of its divisors is an integer number (2717397487968).

Almost surely, 2^{10643140161161} is an apocalyptic number.

It is an amenable number.

10643140161161 is a deficient number, since it is larger than the sum of its proper divisors (226449790711).

10643140161161 is an equidigital number, since it uses as much as digits as its factorization.

10643140161161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226449790710.

The product of its (nonzero) digits is 10368, while the sum is 35.

Adding to 10643140161161 its reverse (16116104134601), we get a palindrome (26759244295762).

The spelling of 10643140161161 in words is "ten trillion, six hundred forty-three billion, one hundred forty million, one hundred sixty-one thousand, one hundred sixty-one".