345640460554161 has 10 divisors (see below), whose sum is σ = 516327107741522. Its totient is φ = 230426973702720.

The previous prime is 345640460554069. The next prime is 345640460554163. The reversal of 345640460554161 is 161455064046543.

345640460554161 is a `hidden beast` number, since 3 + 4 + 5 + 6 + 40 + 46 + 0 + 554 + 1 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 208367954721936 + 137272505832225 = 14434956^2 + 11716335^2 .

It is not a de Polignac number, because 345640460554161 - 2²³ = 345640452165553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345640460554098 and 345640460554107.

It is not an unprimeable number, because it can be changed into a prime (345640460554163) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2133583089760 + ... + 2133583089921.

Almost surely, 2^{345640460554161} is an apocalyptic number.

It is an amenable number.

345640460554161 is a deficient number, since it is larger than the sum of its proper divisors (170686647187361).

345640460554161 is an equidigital number, since it uses as much as digits as its factorization.

345640460554161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267166179693 (or 4267166179684 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 54.

The spelling of 345640460554161 in words is "three hundred forty-five trillion, six hundred forty billion, four hundred sixty million, five hundred fifty-four thousand, one hundred sixty-one".