16660566052 has 24 divisors (see below), whose sum is σ = 31574188800. Its totient is φ = 7646529696.

The previous prime is 16660566047. The next prime is 16660566071. The reversal of 16660566052 is 25066506661.

It is a super-2 number, since 2×16660566052² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885652 + ... + 904267.

It is an arithmetic number, because the mean of its divisors is an integer number (1315591200).

Almost surely, 2^16660566052 is an apocalyptic number.

It is an amenable number.

16660566052 is a deficient number, since it is larger than the sum of its proper divisors (14913622748).

16660566052 is a wasteful number, since it uses less digits than its factorization.

16660566052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790115 (or 1790113 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 16660566052 in words is "sixteen billion, six hundred sixty million, five hundred sixty-six thousand, fifty-two".