16328411557 has 2 divisors, whose sum is σ = 16328411558. Its totient is φ = 16328411556.

The previous prime is 16328411513. The next prime is 16328411587. The reversal of 16328411557 is 75511482361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14819166756 + 1509244801 = 121734^2 + 38849^2 .

It is a cyclic number.

It is not a de Polignac number, because 16328411557 - 2²³ = 16320022949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16328411587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8164205778 + 8164205779.

It is an arithmetic number, because the mean of its divisors is an integer number (8164205779).

Almost surely, 2^16328411557 is an apocalyptic number.

It is an amenable number.

16328411557 is a deficient number, since it is larger than the sum of its proper divisors (1).

16328411557 is an equidigital number, since it uses as much as digits as its factorization.

16328411557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 43.

The spelling of 16328411557 in words is "sixteen billion, three hundred twenty-eight million, four hundred eleven thousand, five hundred fifty-seven".