641350105420 has 12 divisors (see below), whose sum is σ = 1346835221424. Its totient is φ = 256540042160.

The previous prime is 641350105367. The next prime is 641350105427. The reversal of 641350105420 is 24501053146.

It is a happy number.

It is a super-2 number, since 2×641350105420² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641350105427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16033752616 + ... + 16033752655.

It is an arithmetic number, because the mean of its divisors is an integer number (112236268452).

Almost surely, 2^641350105420 is an apocalyptic number.

It is an amenable number.

641350105420 is an abundant number, since it is smaller than the sum of its proper divisors (705485116004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641350105420 is a wasteful number, since it uses less digits than its factorization.

641350105420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32067505280 (or 32067505278 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 641350105420 its reverse (24501053146), we get a palindrome (665851158566).

The spelling of 641350105420 in words is "six hundred forty-one billion, three hundred fifty million, one hundred five thousand, four hundred twenty".