16000665211 has 2 divisors, whose sum is σ = 16000665212. Its totient is φ = 16000665210.

The previous prime is 16000665157. The next prime is 16000665227. The reversal of 16000665211 is 11256600061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16000665211 - 2²¹ = 15998568059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16000665211.

It is not a weakly prime, because it can be changed into another prime (16000665311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000332605 + 8000332606.

It is an arithmetic number, because the mean of its divisors is an integer number (8000332606).

Almost surely, 2^16000665211 is an apocalyptic number.

16000665211 is a deficient number, since it is larger than the sum of its proper divisors (1).

16000665211 is an equidigital number, since it uses as much as digits as its factorization.

16000665211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 16000665211 in words is "sixteen billion, six hundred sixty-five thousand, two hundred eleven".