345502205543 has 4 divisors (see below), whose sum is σ = 376911496968. Its totient is φ = 314092914120.

The previous prime is 345502205519. The next prime is 345502205549.

345502205543 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345502205543 - 2¹⁸ = 345501943399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345502205497 and 345502205506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345502205549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15704645696 + ... + 15704645717.

It is an arithmetic number, because the mean of its divisors is an integer number (94227874242).

Almost surely, 2^345502205543 is an apocalyptic number.

345502205543 is a deficient number, since it is larger than the sum of its proper divisors (31409291425).

345502205543 is a wasteful number, since it uses less digits than its factorization.

345502205543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31409291424.

The product of its (nonzero) digits is 360000, while the sum is 38.

The spelling of 345502205543 in words is "three hundred forty-five billion, five hundred two million, two hundred five thousand, five hundred forty-three".