16089644057 has 2 divisors, whose sum is σ = 16089644058. Its totient is φ = 16089644056.

The previous prime is 16089644027. The next prime is 16089644069. The reversal of 16089644057 is 75044698061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11142069136 + 4947574921 = 105556^2 + 70339^2 .

It is a cyclic number.

It is not a de Polignac number, because 16089644057 - 2⁶ = 16089643993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16089643996 and 16089644014.

It is not a weakly prime, because it can be changed into another prime (16089644027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8044822028 + 8044822029.

It is an arithmetic number, because the mean of its divisors is an integer number (8044822029).

Almost surely, 2^16089644057 is an apocalyptic number.

It is an amenable number.

16089644057 is a deficient number, since it is larger than the sum of its proper divisors (1).

16089644057 is an equidigital number, since it uses as much as digits as its factorization.

16089644057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 16089644057 in words is "sixteen billion, eighty-nine million, six hundred forty-four thousand, fifty-seven".