16505211067 has 2 divisors, whose sum is σ = 16505211068. Its totient is φ = 16505211066.

The previous prime is 16505211059. The next prime is 16505211089. The reversal of 16505211067 is 76011250561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16505211067 - 2³ = 16505211059 is a prime.

It is not a weakly prime, because it can be changed into another prime (16505211017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8252605533 + 8252605534.

It is an arithmetic number, because the mean of its divisors is an integer number (8252605534).

Almost surely, 2^16505211067 is an apocalyptic number.

16505211067 is a deficient number, since it is larger than the sum of its proper divisors (1).

16505211067 is an equidigital number, since it uses as much as digits as its factorization.

16505211067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 16505211067 in words is "sixteen billion, five hundred five million, two hundred eleven thousand, sixty-seven".