641110855 has 48 divisors (see below), whose sum is σ = 1018842624. Its totient is φ = 382240320.

The previous prime is 641110849. The next prime is 641110861. The reversal of 641110855 is 558011146.

641110855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (641110849) and next prime (641110861).

It is not a de Polignac number, because 641110855 - 2²⁵ = 607556423 is a prime.

It is a super-2 number, since 2×641110855² = 822046256797662050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56814 + ... + 67156.

It is an arithmetic number, because the mean of its divisors is an integer number (21225888).

Almost surely, 2^641110855 is an apocalyptic number.

641110855 is a deficient number, since it is larger than the sum of its proper divisors (377731769).

641110855 is a wasteful number, since it uses less digits than its factorization.

641110855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10396 (or 10389 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 641110855 is about 25320.1669623247. The cubic root of 641110855 is about 862.2721845981.

The spelling of 641110855 in words is "six hundred forty-one million, one hundred ten thousand, eight hundred fifty-five".