115601666029 has 2 divisors, whose sum is σ = 115601666030. Its totient is φ = 115601666028.

The previous prime is 115601666027. The next prime is 115601666113. The reversal of 115601666029 is 920666106511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107082745225 + 8518920804 = 327235^2 + 92298^2 .

It is a cyclic number.

It is not a de Polignac number, because 115601666029 - 2¹ = 115601666027 is a prime.

Together with 115601666027, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115601666027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57800833014 + 57800833015.

It is an arithmetic number, because the mean of its divisors is an integer number (57800833015).

Almost surely, 2^115601666029 is an apocalyptic number.

It is an amenable number.

115601666029 is a deficient number, since it is larger than the sum of its proper divisors (1).

115601666029 is an equidigital number, since it uses as much as digits as its factorization.

115601666029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 115601666029 in words is "one hundred fifteen billion, six hundred one million, six hundred sixty-six thousand, twenty-nine".