641110610 has 96 divisors (see below), whose sum is σ = 1385469360. Its totient is φ = 212889600.

The previous prime is 641110609. The next prime is 641110619. The reversal of 641110610 is 16011146.

It can be written as a sum of positive squares in 8 ways, for example, as 87590881 + 553519729 = 9359^2 + 23527^2 .

It is a super-2 number, since 2×641110610² = 822045628509144200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (641110619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2660090 + ... + 2660330.

Almost surely, 2^641110610 is an apocalyptic number.

641110610 is an abundant number, since it is smaller than the sum of its proper divisors (744358750).

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

641110610 is a wasteful number, since it uses less digits than its factorization.

641110610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 641110610 is about 25320.1621242835. The cubic root of 641110610 is about 862.2720747592.

Adding to 641110610 its reverse (16011146), we get a palindrome (657121756).

The spelling of 641110610 in words is "six hundred forty-one million, one hundred ten thousand, six hundred ten".