3431661664161 has 16 divisors (see below), whose sum is σ = 4856780392128. Its totient is φ = 2147829888000.

The previous prime is 3431661664141. The next prime is 3431661664163. The reversal of 3431661664161 is 1614661661343.

It is not a de Polignac number, because 3431661664161 - 2¹⁸ = 3431661402017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3431661664161.

It is not an unprimeable number, because it can be changed into a prime (3431661664163) 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, 83879155 + ... + 83920056.

It is an arithmetic number, because the mean of its divisors is an integer number (303548774508).

Almost surely, 2^{3431661664161} is an apocalyptic number.

It is an amenable number.

3431661664161 is a deficient number, since it is larger than the sum of its proper divisors (1425118727967).

3431661664161 is a wasteful number, since it uses less digits than its factorization.

3431661664161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167799632.

The product of its digits is 1119744, while the sum is 48.

The spelling of 3431661664161 in words is "three trillion, four hundred thirty-one billion, six hundred sixty-one million, six hundred sixty-four thousand, one hundred sixty-one".