641111360 has 56 divisors (see below), whose sum is σ = 1530925056. Its totient is φ = 255726080.

The previous prime is 641111353. The next prime is 641111363. The reversal of 641111360 is 63111146.

It is a super-2 number, since 2×641111360² = 822047551842099200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641111363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119945 + ... + 125175.

Almost surely, 2^641111360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 641111360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765462528).

641111360 is an abundant number, since it is smaller than the sum of its proper divisors (889813696).

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

641111360 is a wasteful number, since it uses less digits than its factorization.

641111360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631 (or 5621 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 641111360 is about 25320.1769346109. The cubic root of 641111360 is about 862.2724110006.

It can be divided in two parts, 6411 and 11360, that added together give a palindrome (17771).

The spelling of 641111360 in words is "six hundred forty-one million, one hundred eleven thousand, three hundred sixty".