4545885231161 has 2 divisors, whose sum is σ = 4545885231162. Its totient is φ = 4545885231160.

The previous prime is 4545885231119. The next prime is 4545885231163. The reversal of 4545885231161 is 1611325885454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4545232122025 + 653109136 = 2131955^2 + 25556^2 .

It is a cyclic number.

It is not a de Polignac number, because 4545885231161 - 2²⁶ = 4545818122297 is a prime.

Together with 4545885231163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4545885231163) 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 as a sum of consecutive naturals, namely, 2272942615580 + 2272942615581.

It is an arithmetic number, because the mean of its divisors is an integer number (2272942615581).

Almost surely, 2^{4545885231161} is an apocalyptic number.

It is an amenable number.

4545885231161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4545885231161 is an equidigital number, since it uses as much as digits as its factorization.

4545885231161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608000, while the sum is 53.

The spelling of 4545885231161 in words is "four trillion, five hundred forty-five billion, eight hundred eighty-five million, two hundred thirty-one thousand, one hundred sixty-one".