5665561049976 has 32 divisors (see below), whose sum is σ = 14166049392000. Its totient is φ = 1888234114400.

The previous prime is 5665561049921. The next prime is 5665561049989. The reversal of 5665561049976 is 6799401655665.

It is a super-3 number, since 3×5665561049976³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 5665561049976.

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 7 ways as a sum of consecutive naturals, for example, 17728050 + ... + 18044801.

It is an arithmetic number, because the mean of its divisors is an integer number (442689043500).

Almost surely, 2^{5665561049976} is an apocalyptic number.

It is an amenable number.

5665561049976 is an abundant number, since it is smaller than the sum of its proper divisors (8500488342024).

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

5665561049976 is a wasteful number, since it uses less digits than its factorization.

5665561049976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35779459 (or 35779455 counting only the distinct ones).

The product of its (nonzero) digits is 367416000, while the sum is 69.

The spelling of 5665561049976 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-one million, forty-nine thousand, nine hundred seventy-six".