345340135505 has 4 divisors (see below), whose sum is σ = 414408162612. Its totient is φ = 276272108400.

The previous prime is 345340135499. The next prime is 345340135513. The reversal of 345340135505 is 505531043543.

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 208523742736 + 136816392769 = 456644^2 + 369887^2 .

It is not a de Polignac number, because 345340135505 - 2¹⁰ = 345340134481 is a prime.

It is a super-2 number, since 2×345340135505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34534013546 + ... + 34534013555.

It is an arithmetic number, because the mean of its divisors is an integer number (103602040653).

Almost surely, 2^345340135505 is an apocalyptic number.

It is an amenable number.

345340135505 is a deficient number, since it is larger than the sum of its proper divisors (69068027107).

345340135505 is an equidigital number, since it uses as much as digits as its factorization.

345340135505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69068027106.

The product of its (nonzero) digits is 270000, while the sum is 38.

The spelling of 345340135505 in words is "three hundred forty-five billion, three hundred forty million, one hundred thirty-five thousand, five hundred five".