641136265262 has 16 divisors (see below), whose sum is σ = 1038121691040. Its totient is φ = 296056925472.

The previous prime is 641136265241. The next prime is 641136265277. The reversal of 641136265262 is 262562631146.

It is a happy number.

It is a super-2 number, since 2×641136265262² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 240304613 + ... + 240307280.

It is an arithmetic number, because the mean of its divisors is an integer number (64882605690).

Almost surely, 2^641136265262 is an apocalyptic number.

641136265262 is a deficient number, since it is larger than the sum of its proper divisors (396985425778).

641136265262 is a wasteful number, since it uses less digits than its factorization.

641136265262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480611947.

The product of its digits is 622080, while the sum is 44.

The spelling of 641136265262 in words is "six hundred forty-one billion, one hundred thirty-six million, two hundred sixty-five thousand, two hundred sixty-two".