5259576123666 has 48 divisors (see below), whose sum is σ = 11468751259680. Its totient is φ = 1741966611840.

The previous prime is 5259576123587. The next prime is 5259576123671. The reversal of 5259576123666 is 6663216759525.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 10730506 + ... + 11209946.

It is an arithmetic number, because the mean of its divisors is an integer number (238932317910).

Almost surely, 2^{5259576123666} is an apocalyptic number.

5259576123666 is an abundant number, since it is smaller than the sum of its proper divisors (6209175136014).

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

5259576123666 is a wasteful number, since it uses less digits than its factorization.

5259576123666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483351 (or 483348 counting only the distinct ones).

The product of its digits is 122472000, while the sum is 63.

The spelling of 5259576123666 in words is "five trillion, two hundred fifty-nine billion, five hundred seventy-six million, one hundred twenty-three thousand, six hundred sixty-six".