641558055332 has 24 divisors (see below), whose sum is σ = 1133619006240. Its totient is φ = 317669025600.

The previous prime is 641558055331. The next prime is 641558055343. The reversal of 641558055332 is 233550855146.

It is a happy number.

It is a super-2 number, since 2×641558055332² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641558055331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957344 + ... + 1483112.

It is an arithmetic number, because the mean of its divisors is an integer number (47234125260).

Almost surely, 2^641558055332 is an apocalyptic number.

It is an amenable number.

641558055332 is a deficient number, since it is larger than the sum of its proper divisors (492060950908).

641558055332 is a wasteful number, since it uses less digits than its factorization.

641558055332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528731 (or 528729 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 641558055332 in words is "six hundred forty-one billion, five hundred fifty-eight million, fifty-five thousand, three hundred thirty-two".