641100133655 has 8 divisors (see below), whose sum is σ = 769822664784. Its totient is φ = 512545104000.

The previous prime is 641100133627. The next prime is 641100133679. The reversal of 641100133655 is 556331001146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 641100133655 - 2¹⁴ = 641100117271 is a prime.

It is a super-2 number, since 2×641100133655² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 41866946 + ... + 41882255.

It is an arithmetic number, because the mean of its divisors is an integer number (96227833098).

Almost surely, 2^641100133655 is an apocalyptic number.

641100133655 is a deficient number, since it is larger than the sum of its proper divisors (128722531129).

641100133655 is a wasteful number, since it uses less digits than its factorization.

641100133655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83750737.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 641100133655 in words is "six hundred forty-one billion, one hundred million, one hundred thirty-three thousand, six hundred fifty-five".