345856658543 has 16 divisors (see below), whose sum is σ = 384449763456. Its totient is φ = 308456497440.

The previous prime is 345856658531. The next prime is 345856658557.

345856658543 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 345856658543 - 2¹⁸ = 345856396399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345856658443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10782896 + ... + 10814922.

It is an arithmetic number, because the mean of its divisors is an integer number (24028110216).

Almost surely, 2^345856658543 is an apocalyptic number.

345856658543 is a deficient number, since it is larger than the sum of its proper divisors (38593104913).

345856658543 is a wasteful number, since it uses less digits than its factorization.

345856658543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50614.

The product of its digits is 207360000, while the sum is 62.

The spelling of 345856658543 in words is "three hundred forty-five billion, eight hundred fifty-six million, six hundred fifty-eight thousand, five hundred forty-three".