16546200686399 has 16 divisors (see below), whose sum is σ = 16611382159680. Its totient is φ = 16481141210880.

The previous prime is 16546200686371. The next prime is 16546200686413. The reversal of 16546200686399 is 99368600264561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16546200686399 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16546200686369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2025978614 + ... + 2025986780.

It is an arithmetic number, because the mean of its divisors is an integer number (1038211384980).

Almost surely, 2^{16546200686399} is an apocalyptic number.

16546200686399 is a deficient number, since it is larger than the sum of its proper divisors (65181473281).

16546200686399 is a wasteful number, since it uses less digits than its factorization.

16546200686399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14690.

The product of its (nonzero) digits is 100776960, while the sum is 65.

The spelling of 16546200686399 in words is "sixteen trillion, five hundred forty-six billion, two hundred million, six hundred eighty-six thousand, three hundred ninety-nine".