6641925411 has 16 divisors (see below), whose sum is σ = 9724969728. Its totient is φ = 3998748000.

The previous prime is 6641925401. The next prime is 6641925427. The reversal of 6641925411 is 1145291466.

It is not a de Polignac number, because 6641925411 - 2¹¹ = 6641923363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6641925411.

It is not an unprimeable number, because it can be changed into a prime (6641925401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661476 + ... + 671441.

It is an arithmetic number, because the mean of its divisors is an integer number (607810608).

Almost surely, 2^6641925411 is an apocalyptic number.

6641925411 is a deficient number, since it is larger than the sum of its proper divisors (3083044317).

6641925411 is a wasteful number, since it uses less digits than its factorization.

6641925411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333082.

The product of its digits is 51840, while the sum is 39.

The square root of 6641925411 is about 81498.0086321132. The cubic root of 6641925411 is about 1879.7409303302.

The spelling of 6641925411 in words is "six billion, six hundred forty-one million, nine hundred twenty-five thousand, four hundred eleven".