11605550006539 has 2 divisors, whose sum is σ = 11605550006540. Its totient is φ = 11605550006538.

The previous prime is 11605550006509. The next prime is 11605550006647. The reversal of 11605550006539 is 93560005550611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11605550006539 - 2⁵ = 11605550006507 is a prime.

It is not a weakly prime, because it can be changed into another prime (11605550006509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5802775003269 + 5802775003270.

It is an arithmetic number, because the mean of its divisors is an integer number (5802775003270).

Almost surely, 2^{11605550006539} is an apocalyptic number.

11605550006539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11605550006539 is an equidigital number, since it uses as much as digits as its factorization.

11605550006539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 607500, while the sum is 46.

The spelling of 11605550006539 in words is "eleven trillion, six hundred five billion, five hundred fifty million, six thousand, five hundred thirty-nine".