112644261557 has 2 divisors, whose sum is σ = 112644261558. Its totient is φ = 112644261556.

The previous prime is 112644261539. The next prime is 112644261601. The reversal of 112644261557 is 755162446211.

It is an a-pointer prime, because the next prime (112644261601) can be obtained adding 112644261557 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110090576401 + 2553685156 = 331799^2 + 50534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112644261557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112644260557) 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, 56322130778 + 56322130779.

It is an arithmetic number, because the mean of its divisors is an integer number (56322130779).

Almost surely, 2^112644261557 is an apocalyptic number.

It is an amenable number.

112644261557 is a deficient number, since it is larger than the sum of its proper divisors (1).

112644261557 is an equidigital number, since it uses as much as digits as its factorization.

112644261557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 44.

The spelling of 112644261557 in words is "one hundred twelve billion, six hundred forty-four million, two hundred sixty-one thousand, five hundred fifty-seven".