43248560161 has 2 divisors, whose sum is σ = 43248560162. Its totient is φ = 43248560160.

The previous prime is 43248560153. The next prime is 43248560189. The reversal of 43248560161 is 16106584234.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42162462225 + 1086097936 = 205335^2 + 32956^2 .

It is a cyclic number.

It is not a de Polignac number, because 43248560161 - 2³ = 43248560153 is a prime.

It is not a weakly prime, because it can be changed into another prime (43248560261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21624280080 + 21624280081.

It is an arithmetic number, because the mean of its divisors is an integer number (21624280081).

Almost surely, 2^43248560161 is an apocalyptic number.

It is an amenable number.

43248560161 is a deficient number, since it is larger than the sum of its proper divisors (1).

43248560161 is an equidigital number, since it uses as much as digits as its factorization.

43248560161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 43248560161 in words is "forty-three billion, two hundred forty-eight million, five hundred sixty thousand, one hundred sixty-one".