20330411461 has 2 divisors, whose sum is σ = 20330411462. Its totient is φ = 20330411460.

The previous prime is 20330411449. The next prime is 20330411489. The reversal of 20330411461 is 16411403302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15044249025 + 5286162436 = 122655^2 + 72706^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330411461 - 2⁹ = 20330410949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330411561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165205730 + 10165205731.

It is an arithmetic number, because the mean of its divisors is an integer number (10165205731).

Almost surely, 2^20330411461 is an apocalyptic number.

It is an amenable number.

20330411461 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330411461 is an equidigital number, since it uses as much as digits as its factorization.

20330411461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 20330411461 its reverse (16411403302), we get a palindrome (36741814763).

The spelling of 20330411461 in words is "twenty billion, three hundred thirty million, four hundred eleven thousand, four hundred sixty-one".