16545054544633 has 4 divisors (see below), whose sum is σ = 16545450391668. Its totient is φ = 16544658697600.

The previous prime is 16545054544573. The next prime is 16545054544637. The reversal of 16545054544633 is 33644545054561.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8507302225984 + 8037752318649 = 2916728^2 + 2835093^2 .

It is a cyclic number.

It is not a de Polignac number, because 16545054544633 - 2¹³ = 16545054536441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16545054544637) 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, 197860816 + ... + 197944417.

It is an arithmetic number, because the mean of its divisors is an integer number (4136362597917).

Almost surely, 2^{16545054544633} is an apocalyptic number.

It is an amenable number.

16545054544633 is a deficient number, since it is larger than the sum of its proper divisors (395847035).

16545054544633 is an equidigital number, since it uses as much as digits as its factorization.

16545054544633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395847034.

The product of its (nonzero) digits is 51840000, while the sum is 55.

The spelling of 16545054544633 in words is "sixteen trillion, five hundred forty-five billion, fifty-four million, five hundred forty-four thousand, six hundred thirty-three".