6641010634 has 4 divisors (see below), whose sum is σ = 9961515954. Its totient is φ = 3320505316.

The previous prime is 6641010589. The next prime is 6641010637. The reversal of 6641010634 is 4360101466.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6584835609 + 56175025 = 81147^2 + 7495^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6641010596 and 6641010605.

It is not an unprimeable number, because it can be changed into a prime (6641010637) 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 as a sum of consecutive naturals, namely, 1660252657 + ... + 1660252660.

Almost surely, 2^6641010634 is an apocalyptic number.

6641010634 is a deficient number, since it is larger than the sum of its proper divisors (3320505320).

6641010634 is a wasteful number, since it uses less digits than its factorization.

6641010634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320505319.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 6641010634 is about 81492.3961728946. The cubic root of 6641010634 is about 1879.6546289135.

The spelling of 6641010634 in words is "six billion, six hundred forty-one million, ten thousand, six hundred thirty-four".