12061550539 has 2 divisors, whose sum is σ = 12061550540. Its totient is φ = 12061550538.

The previous prime is 12061550537. The next prime is 12061550597. The reversal of 12061550539 is 93505516021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12061550539 - 2¹ = 12061550537 is a prime.

Together with 12061550537, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12061550498 and 12061550507.

It is not a weakly prime, because it can be changed into another prime (12061550533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6030775269 + 6030775270.

It is an arithmetic number, because the mean of its divisors is an integer number (6030775270).

Almost surely, 2^12061550539 is an apocalyptic number.

12061550539 is a deficient number, since it is larger than the sum of its proper divisors (1).

12061550539 is an equidigital number, since it uses as much as digits as its factorization.

12061550539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 37.

The spelling of 12061550539 in words is "twelve billion, sixty-one million, five hundred fifty thousand, five hundred thirty-nine".