16545655772111 has 4 divisors (see below), whose sum is σ = 16778693177424. Its totient is φ = 16312618366800.

The previous prime is 16545655772083. The next prime is 16545655772123. The reversal of 16545655772111 is 11127755654561.

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 16545655772111 - 2³⁰ = 16544582030287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545655792111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116518702550 + ... + 116518702691.

It is an arithmetic number, because the mean of its divisors is an integer number (4194673294356).

Almost surely, 2^{16545655772111} is an apocalyptic number.

16545655772111 is a deficient number, since it is larger than the sum of its proper divisors (233037405313).

16545655772111 is an equidigital number, since it uses as much as digits as its factorization.

16545655772111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233037405312.

The product of its digits is 8820000, while the sum is 56.

The spelling of 16545655772111 in words is "sixteen trillion, five hundred forty-five billion, six hundred fifty-five million, seven hundred seventy-two thousand, one hundred eleven".