641111266633354 has 16 divisors (see below), whose sum is σ = 1049132916035136. Its totient is φ = 291402614202400.

The previous prime is 641111266633177. The next prime is 641111266633381. The reversal of 641111266633354 is 453336662111146.

It is a happy number.

It is a super-3 number, since 3×641111266633354³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579329827 + ... + 580435414.

It is an arithmetic number, because the mean of its divisors is an integer number (65570807252196).

Almost surely, 2^{641111266633354} is an apocalyptic number.

641111266633354 is a deficient number, since it is larger than the sum of its proper divisors (408021649401782).

641111266633354 is a wasteful number, since it uses less digits than its factorization.

641111266633354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159790381.

The product of its digits is 5598720, while the sum is 52.

The spelling of 641111266633354 in words is "six hundred forty-one trillion, one hundred eleven billion, two hundred sixty-six million, six hundred thirty-three thousand, three hundred fifty-four".