12041045557 has 2 divisors, whose sum is σ = 12041045558. Its totient is φ = 12041045556.

The previous prime is 12041045539. The next prime is 12041045581. The reversal of 12041045557 is 75554014021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12015228996 + 25816561 = 109614^2 + 5081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12041045557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12041045507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6020522778 + 6020522779.

It is an arithmetic number, because the mean of its divisors is an integer number (6020522779).

Almost surely, 2^12041045557 is an apocalyptic number.

It is an amenable number.

12041045557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12041045557 is an equidigital number, since it uses as much as digits as its factorization.

12041045557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 34.

Adding to 12041045557 its reverse (75554014021), we get a palindrome (87595059578).

The spelling of 12041045557 in words is "twelve billion, forty-one million, forty-five thousand, five hundred fifty-seven".