45045136452161 has 2 divisors, whose sum is σ = 45045136452162. Its totient is φ = 45045136452160.

The previous prime is 45045136452157. The next prime is 45045136452209. The reversal of 45045136452161 is 16125463154054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43744268463025 + 1300867989136 = 6613945^2 + 1140556^2 .

It is a cyclic number.

It is not a de Polignac number, because 45045136452161 - 2² = 45045136452157 is a prime.

It is not a weakly prime, because it can be changed into another prime (45045136952161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22522568226080 + 22522568226081.

It is an arithmetic number, because the mean of its divisors is an integer number (22522568226081).

Almost surely, 2^{45045136452161} is an apocalyptic number.

It is an amenable number.

45045136452161 is a deficient number, since it is larger than the sum of its proper divisors (1).

45045136452161 is an equidigital number, since it uses as much as digits as its factorization.

45045136452161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 45045136452161 in words is "forty-five trillion, forty-five billion, one hundred thirty-six million, four hundred fifty-two thousand, one hundred sixty-one".