16056565566651 has 6 divisors (see below), whose sum is σ = 23192816929620. Its totient is φ = 10704377044428.

The previous prime is 16056565566583. The next prime is 16056565566661. The reversal of 16056565566651 is 15666556565061.

It is not a de Polignac number, because 16056565566651 - 2¹⁰ = 16056565565627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16056565566661) 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, 892031420361 + ... + 892031420378.

It is an arithmetic number, because the mean of its divisors is an integer number (3865469488270).

Almost surely, 2^{16056565566651} is an apocalyptic number.

16056565566651 is a deficient number, since it is larger than the sum of its proper divisors (7136251362969).

16056565566651 is a wasteful number, since it uses less digits than its factorization.

16056565566651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784062840745 (or 1784062840742 counting only the distinct ones).

The product of its (nonzero) digits is 145800000, while the sum is 63.

The spelling of 16056565566651 in words is "sixteen trillion, fifty-six billion, five hundred sixty-five million, five hundred sixty-six thousand, six hundred fifty-one".