16411521211 has 2 divisors, whose sum is σ = 16411521212. Its totient is φ = 16411521210.

The previous prime is 16411521197. The next prime is 16411521227. The reversal of 16411521211 is 11212511461.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16411521211 - 2¹⁷ = 16411390139 is a prime.

It is not a weakly prime, because it can be changed into another prime (16411521271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8205760605 + 8205760606.

It is an arithmetic number, because the mean of its divisors is an integer number (8205760606).

Almost surely, 2^16411521211 is an apocalyptic number.

16411521211 is a deficient number, since it is larger than the sum of its proper divisors (1).

16411521211 is an equidigital number, since it uses as much as digits as its factorization.

16411521211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 25.

The spelling of 16411521211 in words is "sixteen billion, four hundred eleven million, five hundred twenty-one thousand, two hundred eleven".