20541360529 has 2 divisors, whose sum is σ = 20541360530. Its totient is φ = 20541360528.

The previous prime is 20541360473. The next prime is 20541360577. The reversal of 20541360529 is 92506314502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18681422400 + 1859938129 = 136680^2 + 43127^2 .

It is a cyclic number.

It is not a de Polignac number, because 20541360529 - 2²⁵ = 20507806097 is a prime.

It is not a weakly prime, because it can be changed into another prime (20541360589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270680264 + 10270680265.

It is an arithmetic number, because the mean of its divisors is an integer number (10270680265).

Almost surely, 2^20541360529 is an apocalyptic number.

It is an amenable number.

20541360529 is a deficient number, since it is larger than the sum of its proper divisors (1).

20541360529 is an equidigital number, since it uses as much as digits as its factorization.

20541360529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 20541360529 in words is "twenty billion, five hundred forty-one million, three hundred sixty thousand, five hundred twenty-nine".