5565650661664 has 96 divisors (see below), whose sum is σ = 11619413245440. Its totient is φ = 2615185723392.

The previous prime is 5565650661661. The next prime is 5565650661673. The reversal of 5565650661664 is 4661660565655.

It is not an unprimeable number, because it can be changed into a prime (5565650661661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1390367887 + ... + 1390371889.

It is an arithmetic number, because the mean of its divisors is an integer number (121035554640).

Almost surely, 2^{5565650661664} is an apocalyptic number.

It is an amenable number.

5565650661664 is an abundant number, since it is smaller than the sum of its proper divisors (6053762583776).

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

5565650661664 is a wasteful number, since it uses less digits than its factorization.

5565650661664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242 (or 7234 counting only the distinct ones).

The product of its (nonzero) digits is 116640000, while the sum is 61.

The spelling of 5565650661664 in words is "five trillion, five hundred sixty-five billion, six hundred fifty million, six hundred sixty-one thousand, six hundred sixty-four".