641322161202 has 48 divisors (see below), whose sum is σ = 1382507402112. Its totient is φ = 198213760800.

The previous prime is 641322161191. The next prime is 641322161231. The reversal of 641322161202 is 202161223146.

It is a super-2 number, since 2×641322161202² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641322161202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3048049 + ... + 3251652.

It is an arithmetic number, because the mean of its divisors is an integer number (28802237544).

Almost surely, 2^641322161202 is an apocalyptic number.

641322161202 is an abundant number, since it is smaller than the sum of its proper divisors (741185240910).

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

641322161202 is a wasteful number, since it uses less digits than its factorization.

641322161202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299791 (or 6299772 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 641322161202 its reverse (202161223146), we get a palindrome (843483384348).

The spelling of 641322161202 in words is "six hundred forty-one billion, three hundred twenty-two million, one hundred sixty-one thousand, two hundred two".