16555262695243 has 32 divisors (see below), whose sum is σ = 16901716608000. Its totient is φ = 16213101696000.

The previous prime is 16555262695217. The next prime is 16555262695247. The reversal of 16555262695243 is 34259626255561.

It is a cyclic number.

It is not a de Polignac number, because 16555262695243 - 2²¹ = 16555260598091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16555262695247) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 9744120808 + ... + 9744122506.

It is an arithmetic number, because the mean of its divisors is an integer number (528178644000).

Almost surely, 2^{16555262695243} is an apocalyptic number.

16555262695243 is a deficient number, since it is larger than the sum of its proper divisors (346453912757).

16555262695243 is a wasteful number, since it uses less digits than its factorization.

16555262695243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643.

The product of its digits is 116640000, while the sum is 61.

The spelling of 16555262695243 in words is "sixteen trillion, five hundred fifty-five billion, two hundred sixty-two million, six hundred ninety-five thousand, two hundred forty-three".