16456774211 has 2 divisors, whose sum is σ = 16456774212. Its totient is φ = 16456774210.

The previous prime is 16456774153. The next prime is 16456774253. The reversal of 16456774211 is 11247765461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16456774211 is a prime.

It is not a weakly prime, because it can be changed into another prime (16456771211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8228387105 + 8228387106.

It is an arithmetic number, because the mean of its divisors is an integer number (8228387106).

Almost surely, 2^16456774211 is an apocalyptic number.

16456774211 is a deficient number, since it is larger than the sum of its proper divisors (1).

16456774211 is an equidigital number, since it uses as much as digits as its factorization.

16456774211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 44.

The spelling of 16456774211 in words is "sixteen billion, four hundred fifty-six million, seven hundred seventy-four thousand, two hundred eleven".