16533664158668 has 24 divisors (see below), whose sum is σ = 29283332824368. Its totient is φ = 8167003210496.

The previous prime is 16533664158653. The next prime is 16533664158731. The reversal of 16533664158668 is 86685146633561.

It is a junction number, because it is equal to n+sod(n) for n = 16533664158598 and 16533664158607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11510480 + ... + 12866952.

It is an arithmetic number, because the mean of its divisors is an integer number (1220138867682).

Almost surely, 2^{16533664158668} is an apocalyptic number.

It is an amenable number.

16533664158668 is a deficient number, since it is larger than the sum of its proper divisors (12749668665700).

16533664158668 is a wasteful number, since it uses less digits than its factorization.

16533664158668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393273 (or 1393271 counting only the distinct ones).

The product of its digits is 447897600, while the sum is 68.

The spelling of 16533664158668 in words is "sixteen trillion, five hundred thirty-three billion, six hundred sixty-four million, one hundred fifty-eight thousand, six hundred sixty-eight".