16545727723111 has 4 divisors (see below), whose sum is σ = 16553320991800. Its totient is φ = 16538134454424.

The previous prime is 16545727723099. The next prime is 16545727723159. The reversal of 16545727723111 is 11132772754561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16545727723111 - 2²¹ = 16545725625959 is a prime.

It is a super-2 number, since 2×16545727723111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545727783111) 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 3 ways as a sum of consecutive naturals, for example, 3796631076 + ... + 3796635433.

It is an arithmetic number, because the mean of its divisors is an integer number (4138330247950).

Almost surely, 2^{16545727723111} is an apocalyptic number.

16545727723111 is a deficient number, since it is larger than the sum of its proper divisors (7593268689).

16545727723111 is an equidigital number, since it uses as much as digits as its factorization.

16545727723111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593268688.

The product of its digits is 2469600, while the sum is 52.

The spelling of 16545727723111 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty-seven million, seven hundred twenty-three thousand, one hundred eleven".