16061500217866 has 16 divisors (see below), whose sum is σ = 24546975433344. Its totient is φ = 7879176979024.

The previous prime is 16061500217849. The next prime is 16061500217941. The reversal of 16061500217866 is 66871200516061.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21011811 + ... + 21762793.

It is an arithmetic number, because the mean of its divisors is an integer number (1534185964584).

Almost surely, 2^{16061500217866} is an apocalyptic number.

16061500217866 is a deficient number, since it is larger than the sum of its proper divisors (8485475215478).

16061500217866 is a wasteful number, since it uses less digits than its factorization.

16061500217866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952805.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 16061500217866 in words is "sixteen trillion, sixty-one billion, five hundred million, two hundred seventeen thousand, eight hundred sixty-six".