345540443251305 has 16 divisors (see below), whose sum is σ = 557936862500160. Its totient is φ = 182597518634688.

The previous prime is 345540443251303. The next prime is 345540443251397. The reversal of 345540443251305 is 503152344045543.

It is not a de Polignac number, because 345540443251305 - 2¹ = 345540443251303 is a prime.

It is a super-3 number, since 3×345540443251305³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (345540443251301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105669858687 + ... + 105669861956.

It is an arithmetic number, because the mean of its divisors is an integer number (34871053906260).

Almost surely, 2^{345540443251305} is an apocalyptic number.

It is an amenable number.

345540443251305 is a deficient number, since it is larger than the sum of its proper divisors (212396419248855).

345540443251305 is a wasteful number, since it uses less digits than its factorization.

345540443251305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211339720760.

The product of its (nonzero) digits is 8640000, while the sum is 48.

Adding to 345540443251305 its reverse (503152344045543), we get a palindrome (848692787296848).

The spelling of 345540443251305 in words is "three hundred forty-five trillion, five hundred forty billion, four hundred forty-three million, two hundred fifty-one thousand, three hundred five".