641322063 has 16 divisors (see below), whose sum is σ = 950595840. Its totient is φ = 427327992.

The previous prime is 641322061. The next prime is 641322091. The reversal of 641322063 is 360223146.

It is not a de Polignac number, because 641322063 - 2¹ = 641322061 is a prime.

It is a super-2 number, since 2×641322063² = 822587976981151938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641322061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60520 + ... + 70322.

It is an arithmetic number, because the mean of its divisors is an integer number (59412240).

Almost surely, 2^641322063 is an apocalyptic number.

641322063 is a deficient number, since it is larger than the sum of its proper divisors (309273777).

641322063 is a wasteful number, since it uses less digits than its factorization.

641322063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12235 (or 12229 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 641322063 is about 25324.3373654672. The cubic root of 641322063 is about 862.3668633819.

The spelling of 641322063 in words is "six hundred forty-one million, three hundred twenty-two thousand, sixty-three".