6641589016 has 32 divisors (see below), whose sum is σ = 12762398880. Its totient is φ = 3238355200.

The previous prime is 6641589001. The next prime is 6641589083. The reversal of 6641589016 is 6109851466.

It is a super-2 number, since 2×6641589016² = 88221409314903696512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1361061 + ... + 1365931.

It is an arithmetic number, because the mean of its divisors is an integer number (398824965).

Almost surely, 2^6641589016 is an apocalyptic number.

It is an amenable number.

6641589016 is a deficient number, since it is larger than the sum of its proper divisors (6120809864).

6641589016 is a wasteful number, since it uses less digits than its factorization.

6641589016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9075 (or 9071 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 6641589016 is about 81495.9447825473. The cubic root of 6641589016 is about 1879.7091952490.

The spelling of 6641589016 in words is "six billion, six hundred forty-one million, five hundred eighty-nine thousand, sixteen".