345516512161 has 4 divisors (see below), whose sum is σ = 345518646192. Its totient is φ = 345514378132.

The previous prime is 345516512119. The next prime is 345516512183. The reversal of 345516512161 is 161215615543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 345516512161 - 2²³ = 345508123553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345516512101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802255 + ... + 1155268.

It is an arithmetic number, because the mean of its divisors is an integer number (86379661548).

Almost surely, 2^345516512161 is an apocalyptic number.

It is an amenable number.

345516512161 is a deficient number, since it is larger than the sum of its proper divisors (2134031).

345516512161 is a wasteful number, since it uses less digits than its factorization.

345516512161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134030.

The product of its digits is 108000, while the sum is 40.

The spelling of 345516512161 in words is "three hundred forty-five billion, five hundred sixteen million, five hundred twelve thousand, one hundred sixty-one".