2941866542161 has 4 divisors (see below), whose sum is σ = 2974921222500. Its totient is φ = 2908811861824.

The previous prime is 2941866542137. The next prime is 2941866542189. The reversal of 2941866542161 is 1612456681492.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 411361890625 + 2530504651536 = 641375^2 + 1590756^2 .

It is a cyclic number.

It is not a de Polignac number, because 2941866542161 - 2¹⁷ = 2941866411089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2941866542101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16527340036 + ... + 16527340213.

It is an arithmetic number, because the mean of its divisors is an integer number (743730305625).

Almost surely, 2^{2941866542161} is an apocalyptic number.

It is an amenable number.

2941866542161 is a deficient number, since it is larger than the sum of its proper divisors (33054680339).

2941866542161 is an equidigital number, since it uses as much as digits as its factorization.

2941866542161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33054680338.

The product of its digits is 4976640, while the sum is 55.

The spelling of 2941866542161 in words is "two trillion, nine hundred forty-one billion, eight hundred sixty-six million, five hundred forty-two thousand, one hundred sixty-one".