545161183231867 has 4 divisors (see below), whose sum is σ = 545233707009936. Its totient is φ = 545088659453800.

The previous prime is 545161183231853. The next prime is 545161183231877. The reversal of 545161183231867 is 768132381161545.

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 545161183231867 - 2³⁹ = 544611427417979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545161183231877) 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, 36261877759 + ... + 36261892792.

It is an arithmetic number, because the mean of its divisors is an integer number (136308426752484).

Almost surely, 2^{545161183231867} is an apocalyptic number.

545161183231867 is a deficient number, since it is larger than the sum of its proper divisors (72523778069).

545161183231867 is an equidigital number, since it uses as much as digits as its factorization.

545161183231867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72523778068.

The product of its digits is 29030400, while the sum is 61.

The spelling of 545161183231867 in words is "five hundred forty-five trillion, one hundred sixty-one billion, one hundred eighty-three million, two hundred thirty-one thousand, eight hundred sixty-seven".