5445450161 has 2 divisors, whose sum is σ = 5445450162. Its totient is φ = 5445450160.

The previous prime is 5445450133. The next prime is 5445450193. The reversal of 5445450161 is 1610545445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3268294561 + 2177155600 = 57169^2 + 46660^2 .

It is a cyclic number.

It is not a de Polignac number, because 5445450161 - 2⁶ = 5445450097 is a prime.

It is not a weakly prime, because it can be changed into another prime (5445450061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2722725080 + 2722725081.

It is an arithmetic number, because the mean of its divisors is an integer number (2722725081).

Almost surely, 2^5445450161 is an apocalyptic number.

It is an amenable number.

5445450161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5445450161 is an equidigital number, since it uses as much as digits as its factorization.

5445450161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 5445450161 is about 73793.2934689867. The cubic root of 5445450161 is about 1759.3190117879.

The spelling of 5445450161 in words is "five billion, four hundred forty-five million, four hundred fifty thousand, one hundred sixty-one".