543913929161 has 2 divisors, whose sum is σ = 543913929162. Its totient is φ = 543913929160.

The previous prime is 543913929121. The next prime is 543913929227. The reversal of 543913929161 is 161929319345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 473266947136 + 70646982025 = 687944^2 + 265795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543913929161 is a prime.

It is not a weakly prime, because it can be changed into another prime (543913929121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271956964580 + 271956964581.

It is an arithmetic number, because the mean of its divisors is an integer number (271956964581).

Almost surely, 2^543913929161 is an apocalyptic number.

It is an amenable number.

543913929161 is a deficient number, since it is larger than the sum of its proper divisors (1).

543913929161 is an equidigital number, since it uses as much as digits as its factorization.

543913929161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1574640, while the sum is 53.

The spelling of 543913929161 in words is "five hundred forty-three billion, nine hundred thirteen million, nine hundred twenty-nine thousand, one hundred sixty-one".