116445450661 has 2 divisors, whose sum is σ = 116445450662. Its totient is φ = 116445450660.

The previous prime is 116445450631. The next prime is 116445450697. The reversal of 116445450661 is 166054544611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81028469025 + 35416981636 = 284655^2 + 188194^2 .

It is an emirp because it is prime and its reverse (166054544611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116445450661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116445450601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58222725330 + 58222725331.

It is an arithmetic number, because the mean of its divisors is an integer number (58222725331).

Almost surely, 2^116445450661 is an apocalyptic number.

It is an amenable number.

116445450661 is a deficient number, since it is larger than the sum of its proper divisors (1).

116445450661 is an equidigital number, since it uses as much as digits as its factorization.

116445450661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 116445450661 in words is "one hundred sixteen billion, four hundred forty-five million, four hundred fifty thousand, six hundred sixty-one".