605638020343 has 32 divisors (see below), whose sum is σ = 662764861440. Its totient is φ = 551670134400.

The previous prime is 605638020331. The next prime is 605638020347. The reversal of 605638020343 is 343020836506.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 605638020343 - 2²⁵ = 605604465911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 605638020296 and 605638020305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605638020347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17700430 + ... + 17734612.

It is an arithmetic number, because the mean of its divisors is an integer number (20711401920).

Almost surely, 2^605638020343 is an apocalyptic number.

605638020343 is a deficient number, since it is larger than the sum of its proper divisors (57126841097).

605638020343 is a wasteful number, since it uses less digits than its factorization.

605638020343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34599.

The product of its (nonzero) digits is 311040, while the sum is 40.

Adding to 605638020343 its reverse (343020836506), we get a palindrome (948658856849).

The spelling of 605638020343 in words is "six hundred five billion, six hundred thirty-eight million, twenty thousand, three hundred forty-three".