111000666751697 has 2 divisors, whose sum is σ = 111000666751698. Its totient is φ = 111000666751696.

The previous prime is 111000666751693. The next prime is 111000666751703. The reversal of 111000666751697 is 796157666000111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98285195104321 + 12715471647376 = 9913889^2 + 3565876^2 .

It is a cyclic number.

It is not a de Polignac number, because 111000666751697 - 2² = 111000666751693 is a prime.

It is a super-2 number, since 2×111000666751697² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111000666751693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500333375848 + 55500333375849.

It is an arithmetic number, because the mean of its divisors is an integer number (55500333375849).

Almost surely, 2^{111000666751697} is an apocalyptic number.

It is an amenable number.

111000666751697 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000666751697 is an equidigital number, since it uses as much as digits as its factorization.

111000666751697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2857680, while the sum is 56.

The spelling of 111000666751697 in words is "one hundred eleven trillion, six hundred sixty-six million, seven hundred fifty-one thousand, six hundred ninety-seven".