111717466481 has 2 divisors, whose sum is σ = 111717466482. Its totient is φ = 111717466480.

The previous prime is 111717466447. The next prime is 111717466489. The reversal of 111717466481 is 184664717111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110811757456 + 905709025 = 332884^2 + 30095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111717466481 is a prime.

It is a super-2 number, since 2×111717466481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111717466489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55858733240 + 55858733241.

It is an arithmetic number, because the mean of its divisors is an integer number (55858733241).

Almost surely, 2^111717466481 is an apocalyptic number.

It is an amenable number.

111717466481 is a deficient number, since it is larger than the sum of its proper divisors (1).

111717466481 is an equidigital number, since it uses as much as digits as its factorization.

111717466481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 47.

The spelling of 111717466481 in words is "one hundred eleven billion, seven hundred seventeen million, four hundred sixty-six thousand, four hundred eighty-one".