6641045536 has 24 divisors (see below), whose sum is σ = 13120776144. Its totient is φ = 3308784960.

The previous prime is 6641045533. The next prime is 6641045581. The reversal of 6641045536 is 6355401466.

It is a super-2 number, since 2×6641045536² = 88206971622451054592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6641045533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357610 + ... + 375721.

It is an arithmetic number, because the mean of its divisors is an integer number (546699006).

Almost surely, 2^6641045536 is an apocalyptic number.

It is an amenable number.

6641045536 is a deficient number, since it is larger than the sum of its proper divisors (6479730608).

6641045536 is a wasteful number, since it uses less digits than its factorization.

6641045536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733624 (or 733616 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 6641045536 is about 81492.6103152918. The cubic root of 6641045536 is about 1879.6579217652.

The spelling of 6641045536 in words is "six billion, six hundred forty-one million, forty-five thousand, five hundred thirty-six".