620164206242 has 16 divisors (see below), whose sum is σ = 1125676206720. Its totient is φ = 250150267968.

The previous prime is 620164206223. The next prime is 620164206253. The reversal of 620164206242 is 242602461026.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1302865742 + ... + 1302866217.

It is an arithmetic number, because the mean of its divisors is an integer number (70354762920).

Almost surely, 2^620164206242 is an apocalyptic number.

620164206242 is a deficient number, since it is larger than the sum of its proper divisors (505512000478).

620164206242 is a wasteful number, since it uses less digits than its factorization.

620164206242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605731985.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 620164206242 its reverse (242602461026), we get a palindrome (862766667268).

The spelling of 620164206242 in words is "six hundred twenty billion, one hundred sixty-four million, two hundred six thousand, two hundred forty-two".