641325645501 has 8 divisors (see below), whose sum is σ = 855106674720. Its totient is φ = 427547523312.

The previous prime is 641325645497. The next prime is 641325645523. The reversal of 641325645501 is 105546523146.

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

It is not a de Polignac number, because 641325645501 - 2² = 641325645497 is a prime.

It is a super-2 number, since 2×641325645501² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641325641501) 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, 145606 + ... + 1141863.

It is an arithmetic number, because the mean of its divisors is an integer number (106888334340).

Almost surely, 2^641325645501 is an apocalyptic number.

It is an amenable number.

641325645501 is a deficient number, since it is larger than the sum of its proper divisors (213781029219).

641325645501 is a wasteful number, since it uses less digits than its factorization.

641325645501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453515.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 641325645501 in words is "six hundred forty-one billion, three hundred twenty-five million, six hundred forty-five thousand, five hundred one".