45161610620305 has 4 divisors (see below), whose sum is σ = 54193932744372. Its totient is φ = 36129288496240.

The previous prime is 45161610620261. The next prime is 45161610620311. The reversal of 45161610620305 is 50302601616154.

It is a happy number.

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 24529920767361 + 20631689852944 = 4952769^2 + 4542212^2 .

It is not a de Polignac number, because 45161610620305 - 2³¹ = 45159463136657 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4516161062026 + ... + 4516161062035.

It is an arithmetic number, because the mean of its divisors is an integer number (13548483186093).

Almost surely, 2^{45161610620305} is an apocalyptic number.

It is an amenable number.

45161610620305 is a deficient number, since it is larger than the sum of its proper divisors (9032322124067).

45161610620305 is an equidigital number, since it uses as much as digits as its factorization.

45161610620305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9032322124066.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 45161610620305 in words is "forty-five trillion, one hundred sixty-one billion, six hundred ten million, six hundred twenty thousand, three hundred five".