205514411189 has 2 divisors, whose sum is σ = 205514411190. Its totient is φ = 205514411188.

The previous prime is 205514411161. The next prime is 205514411257. The reversal of 205514411189 is 981114415502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189348560164 + 16165851025 = 435142^2 + 127145^2 .

It is a cyclic number.

It is not a de Polignac number, because 205514411189 - 2¹⁶ = 205514345653 is a prime.

It is a super-2 number, since 2×205514411189² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205514411149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102757205594 + 102757205595.

It is an arithmetic number, because the mean of its divisors is an integer number (102757205595).

Almost surely, 2^205514411189 is an apocalyptic number.

It is an amenable number.

205514411189 is a deficient number, since it is larger than the sum of its proper divisors (1).

205514411189 is an equidigital number, since it uses as much as digits as its factorization.

205514411189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 41.

The spelling of 205514411189 in words is "two hundred five billion, five hundred fourteen million, four hundred eleven thousand, one hundred eighty-nine".