340306306505 has 16 divisors (see below), whose sum is σ = 445504276800. Its totient is φ = 247488615360.

The previous prime is 340306306453. The next prime is 340306306513. The reversal of 340306306505 is 505603603043.

It is not a de Polignac number, because 340306306505 - 2¹² = 340306302409 is a prime.

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, 2757206 + ... + 2877984.

It is an arithmetic number, because the mean of its divisors is an integer number (27844017300).

Almost surely, 2^340306306505 is an apocalyptic number.

It is an amenable number.

340306306505 is a deficient number, since it is larger than the sum of its proper divisors (105197970295).

340306306505 is a wasteful number, since it uses less digits than its factorization.

340306306505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172024.

The product of its (nonzero) digits is 97200, while the sum is 35.

Adding to 340306306505 its reverse (505603603043), we get a palindrome (845909909548).

The spelling of 340306306505 in words is "three hundred forty billion, three hundred six million, three hundred six thousand, five hundred five".