3544874012161 has 4 divisors (see below), whose sum is σ = 3545151379924. Its totient is φ = 3544596644400.

The previous prime is 3544874012159. The next prime is 3544874012167. The reversal of 3544874012161 is 1612104784453.

3544874012161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 998088913936 + 2546785098225 = 999044^2 + 1595865^2 .

It is a cyclic number.

It is not a de Polignac number, because 3544874012161 - 2¹ = 3544874012159 is a prime.

It is a super-2 number, since 2×3544874012161² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3544874012167) 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, 138664710 + ... + 138690271.

It is an arithmetic number, because the mean of its divisors is an integer number (886287844981).

Almost surely, 2^{3544874012161} is an apocalyptic number.

It is an amenable number.

3544874012161 is a deficient number, since it is larger than the sum of its proper divisors (277367763).

3544874012161 is a wasteful number, since it uses less digits than its factorization.

3544874012161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277367762.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 3544874012161 in words is "three trillion, five hundred forty-four billion, eight hundred seventy-four million, twelve thousand, one hundred sixty-one".