16812223177 has 2 divisors, whose sum is σ = 16812223178. Its totient is φ = 16812223176.

The previous prime is 16812223159. The next prime is 16812223231. The reversal of 16812223177 is 77132221861.

16812223177 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15029779216 + 1782443961 = 122596^2 + 42219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16812223177 is a prime.

It is not a weakly prime, because it can be changed into another prime (16812223147) 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, 8406111588 + 8406111589.

It is an arithmetic number, because the mean of its divisors is an integer number (8406111589).

Almost surely, 2^16812223177 is an apocalyptic number.

It is an amenable number.

16812223177 is a deficient number, since it is larger than the sum of its proper divisors (1).

16812223177 is an equidigital number, since it uses as much as digits as its factorization.

16812223177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The spelling of 16812223177 in words is "sixteen billion, eight hundred twelve million, two hundred twenty-three thousand, one hundred seventy-seven".