6640203444102 has 12 divisors (see below), whose sum is σ = 14387107462260. Its totient is φ = 2213401148028.

The previous prime is 6640203444101. The next prime is 6640203444139. The reversal of 6640203444102 is 2014443020466.

6640203444102 is a `hidden beast` number, since 6 + 6 + 4 + 0 + 203 + 4 + 441 + 0 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6640203444101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184450095652 + ... + 184450095687.

It is an arithmetic number, because the mean of its divisors is an integer number (1198925621855).

Almost surely, 2^{6640203444102} is an apocalyptic number.

6640203444102 is an abundant number, since it is smaller than the sum of its proper divisors (7746904018158).

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

6640203444102 is a wasteful number, since it uses less digits than its factorization.

6640203444102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368900191347 (or 368900191344 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 6640203444102 its reverse (2014443020466), we get a palindrome (8654646464568).

The spelling of 6640203444102 in words is "six trillion, six hundred forty billion, two hundred three million, four hundred forty-four thousand, one hundred two".