6603440053660 has 12 divisors (see below), whose sum is σ = 13867224112728. Its totient is φ = 2641376021456.

The previous prime is 6603440053597. The next prime is 6603440053667. The reversal of 6603440053660 is 663500443066.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6603440053667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165086001322 + ... + 165086001361.

It is an arithmetic number, because the mean of its divisors is an integer number (1155602009394).

Almost surely, 2^{6603440053660} is an apocalyptic number.

It is an amenable number.

6603440053660 is an abundant number, since it is smaller than the sum of its proper divisors (7263784059068).

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

6603440053660 is a wasteful number, since it uses less digits than its factorization.

6603440053660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330172002692 (or 330172002690 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 6603440053660 in words is "six trillion, six hundred three billion, four hundred forty million, fifty-three thousand, six hundred sixty".