180523440511 has 2 divisors, whose sum is σ = 180523440512. Its totient is φ = 180523440510.

The previous prime is 180523440491. The next prime is 180523440599. The reversal of 180523440511 is 115044325081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 180523440511 - 2¹¹ = 180523438463 is a prime.

It is a super-2 number, since 2×180523440511² (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 (180523444511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90261720255 + 90261720256.

It is an arithmetic number, because the mean of its divisors is an integer number (90261720256).

Almost surely, 2^180523440511 is an apocalyptic number.

180523440511 is a deficient number, since it is larger than the sum of its proper divisors (1).

180523440511 is an equidigital number, since it uses as much as digits as its factorization.

180523440511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 180523440511 its reverse (115044325081), we get a palindrome (295567765592).

The spelling of 180523440511 in words is "one hundred eighty billion, five hundred twenty-three million, four hundred forty thousand, five hundred eleven".