16066651656 has 64 divisors (see below), whose sum is σ = 45723294720. Its totient is φ = 4656998720.

The previous prime is 16066651639. The next prime is 16066651681. The reversal of 16066651656 is 65615666061.

16066651656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 1316940 + ... + 1329083.

It is an arithmetic number, because the mean of its divisors is an integer number (714426480).

Almost surely, 2^16066651656 is an apocalyptic number.

It is an amenable number.

16066651656 is an abundant number, since it is smaller than the sum of its proper divisors (29656643064).

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

16066651656 is a wasteful number, since it uses less digits than its factorization.

16066651656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646066 (or 2646062 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

It can be divided in two parts, 1606665 and 1656, that added together give a triangular number (1608321 = T₁₇₉₃).

The spelling of 16066651656 in words is "sixteen billion, sixty-six million, six hundred fifty-one thousand, six hundred fifty-six".