641085818088 has 64 divisors (see below), whose sum is σ = 1608792192000. Its totient is φ = 212886356672.

The previous prime is 641085818063. The next prime is 641085818099. The reversal of 641085818088 is 880818580146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7185931 + ... + 7274597.

It is an arithmetic number, because the mean of its divisors is an integer number (25137378000).

Almost surely, 2^641085818088 is an apocalyptic number.

It is an amenable number.

641085818088 is an abundant number, since it is smaller than the sum of its proper divisors (967706373912).

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

641085818088 is a wasteful number, since it uses less digits than its factorization.

641085818088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89814 (or 89810 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 57.

The spelling of 641085818088 in words is "six hundred forty-one billion, eighty-five million, eight hundred eighteen thousand, eighty-eight".