16605077 has 2 divisors, whose sum is σ = 16605078. Its totient is φ = 16605076.

The previous prime is 16605037. The next prime is 16605109. The reversal of 16605077 is 77050661.

It is an a-pointer prime, because the next prime (16605109) can be obtained adding 16605077 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14432401 + 2172676 = 3799^2 + 1474^2 .

It is an emirp because it is prime and its reverse (77050661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16605077 - 2⁸ = 16604821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16605037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8302538 + 8302539.

It is an arithmetic number, because the mean of its divisors is an integer number (8302539).

Almost surely, 2^16605077 is an apocalyptic number.

It is an amenable number.

16605077 is a deficient number, since it is larger than the sum of its proper divisors (1).

16605077 is an equidigital number, since it uses as much as digits as its factorization.

16605077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 16605077 is about 4074.9327601814. The cubic root of 16605077 is about 255.1214441393.

The spelling of 16605077 in words is "sixteen million, six hundred five thousand, seventy-seven".