641335160 has 16 divisors (see below), whose sum is σ = 1443004200. Its totient is φ = 256534048.

The previous prime is 641335159. The next prime is 641335169. The reversal of 641335160 is 61533146.

It is a happy number.

It is a super-2 number, since 2×641335160² = 822621574904451200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641335169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8016650 + ... + 8016729.

Almost surely, 2^641335160 is an apocalyptic number.

It is an amenable number.

641335160 is an abundant number, since it is smaller than the sum of its proper divisors (801669040).

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

641335160 is a wasteful number, since it uses less digits than its factorization.

641335160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16033390 (or 16033386 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 641335160 is about 25324.5959493928. The cubic root of 641335160 is about 862.3727337251.

The spelling of 641335160 in words is "six hundred forty-one million, three hundred thirty-five thousand, one hundred sixty".