641560232213 has 8 divisors (see below), whose sum is σ = 679335892632. Its totient is φ = 603788663296.

The previous prime is 641560232189. The next prime is 641560232249. The reversal of 641560232213 is 312232065146.

641560232213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 331151909764 + 310408322449 = 575458^2 + 557143^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 641560232213 - 2⁸ = 641560231957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641560232413) 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, 697070 + ... + 1330047.

It is an arithmetic number, because the mean of its divisors is an integer number (84916986579).

Almost surely, 2^641560232213 is an apocalyptic number.

It is an amenable number.

641560232213 is a deficient number, since it is larger than the sum of its proper divisors (37775660419).

641560232213 is a wasteful number, since it uses less digits than its factorization.

641560232213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045751.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 641560232213 its reverse (312232065146), we get a palindrome (953792297359).

The spelling of 641560232213 in words is "six hundred forty-one billion, five hundred sixty million, two hundred thirty-two thousand, two hundred thirteen".