340512540215 has 16 divisors (see below), whose sum is σ = 409094212608. Its totient is φ = 272090729376.

The previous prime is 340512540149. The next prime is 340512540229. The reversal of 340512540215 is 512045215043.

It is a cyclic number.

It is not a de Polignac number, because 340512540215 - 2²⁶ = 340445431351 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 32218862 + ... + 32229428.

It is an arithmetic number, because the mean of its divisors is an integer number (25568388288).

Almost surely, 2^340512540215 is an apocalyptic number.

340512540215 is a deficient number, since it is larger than the sum of its proper divisors (68581672393).

340512540215 is a wasteful number, since it uses less digits than its factorization.

340512540215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17518.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 340512540215 its reverse (512045215043), we get a palindrome (852557755258).

The spelling of 340512540215 in words is "three hundred forty billion, five hundred twelve million, five hundred forty thousand, two hundred fifteen".