6660420044604 has 24 divisors (see below), whose sum is σ = 15753870244560. Its totient is φ = 2189727137664.

The previous prime is 6660420044569. The next prime is 6660420044687. The reversal of 6660420044604 is 4064400240666.

It is a super-2 number, since 2×6660420044604² (a number of 26 digits) 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, 3801608739 + ... + 3801610490.

It is an arithmetic number, because the mean of its divisors is an integer number (656411260190).

Almost surely, 2^{6660420044604} is an apocalyptic number.

It is an amenable number.

6660420044604 is an abundant number, since it is smaller than the sum of its proper divisors (9093450199956).

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

6660420044604 is a wasteful number, since it uses less digits than its factorization.

6660420044604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7603219309 (or 7603219307 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 6660420044604 in words is "six trillion, six hundred sixty billion, four hundred twenty million, forty-four thousand, six hundred four".