6601651664604 has 24 divisors (see below), whose sum is σ = 15403987592448. Its totient is φ = 2200531453680.

The previous prime is 6601651664593. The next prime is 6601651664623. The reversal of 6601651664604 is 4064661561066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911062 + ... + 3746109.

It is an arithmetic number, because the mean of its divisors is an integer number (641832816352).

Almost surely, 2^{6601651664604} is an apocalyptic number.

It is an amenable number.

6601651664604 is an abundant number, since it is smaller than the sum of its proper divisors (8802335927844).

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

6601651664604 is a wasteful number, since it uses less digits than its factorization.

6601651664604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775305 (or 4775303 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 6601651664604 in words is "six trillion, six hundred one billion, six hundred fifty-one million, six hundred sixty-four thousand, six hundred four".