641020695 has 64 divisors (see below), whose sum is σ = 1248307200. Its totient is φ = 280245504.

The previous prime is 641020643. The next prime is 641020711. The reversal of 641020695 is 596020146.

641020695 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641020695 - 2¹¹ = 641018647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 115627 + ... + 121043.

It is an arithmetic number, because the mean of its divisors is an integer number (19504800).

Almost surely, 2^641020695 is an apocalyptic number.

641020695 is a deficient number, since it is larger than the sum of its proper divisors (607286505).

641020695 is a wasteful number, since it uses less digits than its factorization.

641020695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5469 (or 5455 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 641020695 is about 25318.3865007231. The cubic root of 641020695 is about 862.2317619971.

The spelling of 641020695 in words is "six hundred forty-one million, twenty thousand, six hundred ninety-five".