180765474063541 has 2 divisors, whose sum is σ = 180765474063542. Its totient is φ = 180765474063540.

The previous prime is 180765474063539. The next prime is 180765474063557. The reversal of 180765474063541 is 145360474567081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93427496324100 + 87337977739441 = 9665790^2 + 9345479^2 .

It is a cyclic number.

It is not a de Polignac number, because 180765474063541 - 2¹ = 180765474063539 is a prime.

It is a super-2 number, since 2×180765474063541² (a number of 29 digits) contains 22 as substring.

Together with 180765474063539, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 180765474063541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180765474063521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90382737031770 + 90382737031771.

It is an arithmetic number, because the mean of its divisors is an integer number (90382737031771).

Almost surely, 2^{180765474063541} is an apocalyptic number.

It is an amenable number.

180765474063541 is a deficient number, since it is larger than the sum of its proper divisors (1).

180765474063541 is an equidigital number, since it uses as much as digits as its factorization.

180765474063541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67737600, while the sum is 61.

The spelling of 180765474063541 in words is "one hundred eighty trillion, seven hundred sixty-five billion, four hundred seventy-four million, sixty-three thousand, five hundred forty-one".