641442244146 has 64 divisors (see below), whose sum is σ = 1469378119680. Its totient is φ = 184872663360.

The previous prime is 641442244127. The next prime is 641442244193.

641442244146 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×641442244146² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641442244098 and 641442244107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2372746 + ... + 2629221.

It is an arithmetic number, because the mean of its divisors is an integer number (22959033120).

Almost surely, 2^641442244146 is an apocalyptic number.

641442244146 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

641442244146 is an abundant number, since it is smaller than the sum of its proper divisors (827935875534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641442244146 is a wasteful number, since it uses less digits than its factorization.

641442244146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002079.

The product of its digits is 589824, while the sum is 42.

It can be divided in two parts, 641442 and 244146, that added together give a palindrome (885588).

The spelling of 641442244146 in words is "six hundred forty-one billion, four hundred forty-two million, two hundred forty-four thousand, one hundred forty-six".