116711721481 has 2 divisors, whose sum is σ = 116711721482. Its totient is φ = 116711721480.

The previous prime is 116711721463. The next prime is 116711721523. The reversal of 116711721481 is 184127117611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113154195456 + 3557526025 = 336384^2 + 59645^2 .

It is an emirp because it is prime and its reverse (184127117611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116711721481 - 2¹⁵ = 116711688713 is a prime.

It is a super-2 number, since 2×116711721481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (116711721461) 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, 58355860740 + 58355860741.

It is an arithmetic number, because the mean of its divisors is an integer number (58355860741).

Almost surely, 2^116711721481 is an apocalyptic number.

It is an amenable number.

116711721481 is a deficient number, since it is larger than the sum of its proper divisors (1).

116711721481 is an equidigital number, since it uses as much as digits as its factorization.

116711721481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 40.

The spelling of 116711721481 in words is "one hundred sixteen billion, seven hundred eleven million, seven hundred twenty-one thousand, four hundred eighty-one".