45330398161 has 2 divisors, whose sum is σ = 45330398162. Its totient is φ = 45330398160.

The previous prime is 45330398137. The next prime is 45330398177. The reversal of 45330398161 is 16189303354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42090625600 + 3239772561 = 205160^2 + 56919^2 .

It is a cyclic number.

It is not a de Polignac number, because 45330398161 - 2⁵ = 45330398129 is a prime.

It is not a weakly prime, because it can be changed into another prime (45330398131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22665199080 + 22665199081.

It is an arithmetic number, because the mean of its divisors is an integer number (22665199081).

Almost surely, 2^45330398161 is an apocalyptic number.

It is an amenable number.

45330398161 is a deficient number, since it is larger than the sum of its proper divisors (1).

45330398161 is an equidigital number, since it uses as much as digits as its factorization.

45330398161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 45330398161 in words is "forty-five billion, three hundred thirty million, three hundred ninety-eight thousand, one hundred sixty-one".