6504661126044 has 18 divisors (see below), whose sum is σ = 16442337846480. Its totient is φ = 2168220375336.

The previous prime is 6504661126043. The next prime is 6504661126069. The reversal of 6504661126044 is 4406211664056.

6504661126044 is a `hidden beast` number, since 6 + 5 + 0 + 4 + 6 + 611 + 26 + 0 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6504661126043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90342515604 + ... + 90342515675.

Almost surely, 2^{6504661126044} is an apocalyptic number.

It is an amenable number.

6504661126044 is an abundant number, since it is smaller than the sum of its proper divisors (9937676720436).

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

6504661126044 is a wasteful number, since it uses less digits than its factorization.

6504661126044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180685031289 (or 180685031284 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 6504661126044 in words is "six trillion, five hundred four billion, six hundred sixty-one million, one hundred twenty-six thousand, forty-four".