5665561049526 has 32 divisors (see below), whose sum is σ = 12959671887360. Its totient is φ = 1617504470976.

The previous prime is 5665561049507. The next prime is 5665561049537. The reversal of 5665561049526 is 6259401655665.

It is a self number, because there is not a number n which added to its sum of digits gives 5665561049526.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 51079671 + ... + 51190466.

It is an arithmetic number, because the mean of its divisors is an integer number (404989746480).

Almost surely, 2^{5665561049526} is an apocalyptic number.

5665561049526 is an abundant number, since it is smaller than the sum of its proper divisors (7294110837834).

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

5665561049526 is a wasteful number, since it uses less digits than its factorization.

5665561049526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102271468.

The product of its (nonzero) digits is 58320000, while the sum is 60.

The spelling of 5665561049526 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-one million, forty-nine thousand, five hundred twenty-six".