641243342146 has 32 divisors (see below), whose sum is σ = 1058733307008. Its totient is φ = 288856592640.

The previous prime is 641243342141. The next prime is 641243342209.

641243342146 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×641243342146² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641243342099 and 641243342108.

It is not an unprimeable number, because it can be changed into a prime (641243342141) 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 15 ways as a sum of consecutive naturals, for example, 28048056 + ... + 28070908.

It is an arithmetic number, because the mean of its divisors is an integer number (33085415844).

Almost surely, 2^641243342146 is an apocalyptic number.

641243342146 is a deficient number, since it is larger than the sum of its proper divisors (417489964862).

641243342146 is a wasteful number, since it uses less digits than its factorization.

641243342146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34266.

The product of its digits is 331776, while the sum is 40.

It can be divided in two parts, 641243 and 342146, that added together give a palindrome (983389).

The spelling of 641243342146 in words is "six hundred forty-one billion, two hundred forty-three million, three hundred forty-two thousand, one hundred forty-six".