641322555967 has 8 divisors (see below), whose sum is σ = 641825868672. Its totient is φ = 640819445400.

The previous prime is 641322555953. The next prime is 641322556009. The reversal of 641322555967 is 769555223146.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641322555967 is a prime.

It is a super-2 number, since 2×641322555967² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641322535967) 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, 6640092 + ... + 6735982.

It is an arithmetic number, because the mean of its divisors is an integer number (80228233584).

Almost surely, 2^641322555967 is an apocalyptic number.

641322555967 is a deficient number, since it is larger than the sum of its proper divisors (503312705).

641322555967 is a wasteful number, since it uses less digits than its factorization.

641322555967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101069.

The product of its digits is 13608000, while the sum is 55.

The spelling of 641322555967 in words is "six hundred forty-one billion, three hundred twenty-two million, five hundred fifty-five thousand, nine hundred sixty-seven".