2161337345735 has 16 divisors (see below), whose sum is σ = 2706888761856. Its totient is φ = 1653576052128.

The previous prime is 2161337345659. The next prime is 2161337345753. The reversal of 2161337345735 is 5375437331612.

It is a cyclic number.

It is not a de Polignac number, because 2161337345735 - 2²⁶ = 2161270236871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196699 + ... + 2398908.

It is an arithmetic number, because the mean of its divisors is an integer number (169180547616).

Almost surely, 2^{2161337345735} is an apocalyptic number.

2161337345735 is a deficient number, since it is larger than the sum of its proper divisors (545551416121).

2161337345735 is a wasteful number, since it uses less digits than its factorization.

2161337345735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600862.

The product of its digits is 4762800, while the sum is 50.

The spelling of 2161337345735 in words is "two trillion, one hundred sixty-one billion, three hundred thirty-seven million, three hundred forty-five thousand, seven hundred thirty-five".