344765556531161 has 4 divisors (see below), whose sum is σ = 344915912205732. Its totient is φ = 344615200856592.

The previous prime is 344765556531133. The next prime is 344765556531181. The reversal of 344765556531161 is 161135655567443.

It is a happy number.

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 35116954513936 + 309648602017225 = 5925956^2 + 17596835^2 .

It is a cyclic number.

It is not a de Polignac number, because 344765556531161 - 2⁴⁶ = 274396812353497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344765556531094 and 344765556531103.

It is not an unprimeable number, because it can be changed into a prime (344765556531101) 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, 75177833846 + ... + 75177838431.

It is an arithmetic number, because the mean of its divisors is an integer number (86228978051433).

Almost surely, 2^{344765556531161} is an apocalyptic number.

It is an amenable number.

344765556531161 is a deficient number, since it is larger than the sum of its proper divisors (150355674571).

344765556531161 is a wasteful number, since it uses less digits than its factorization.

344765556531161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150355674570.

The product of its digits is 136080000, while the sum is 62.

The spelling of 344765556531161 in words is "three hundred forty-four trillion, seven hundred sixty-five billion, five hundred fifty-six million, five hundred thirty-one thousand, one hundred sixty-one".