16408028235377 has 2 divisors, whose sum is σ = 16408028235378. Its totient is φ = 16408028235376.

The previous prime is 16408028235373. The next prime is 16408028235409. The reversal of 16408028235377 is 77353282080461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14283267221041 + 2124761014336 = 3779321^2 + 1457656^2 .

It is a cyclic number.

It is not a de Polignac number, because 16408028235377 - 2² = 16408028235373 is a prime.

It is not a weakly prime, because it can be changed into another prime (16408028235371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8204014117688 + 8204014117689.

It is an arithmetic number, because the mean of its divisors is an integer number (8204014117689).

Almost surely, 2^{16408028235377} is an apocalyptic number.

It is an amenable number.

16408028235377 is a deficient number, since it is larger than the sum of its proper divisors (1).

16408028235377 is an equidigital number, since it uses as much as digits as its factorization.

16408028235377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 16408028235377 in words is "sixteen trillion, four hundred eight billion, twenty-eight million, two hundred thirty-five thousand, three hundred seventy-seven".