118606000081 has 2 divisors, whose sum is σ = 118606000082. Its totient is φ = 118606000080.

The previous prime is 118606000043. The next prime is 118606000103. The reversal of 118606000081 is 180000606811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118528718400 + 77281681 = 344280^2 + 8791^2 .

It is an emirp because it is prime and its reverse (180000606811) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 180000909811 and 118909000081.

It is a cyclic number.

It is not a de Polignac number, because 118606000081 - 2⁹ = 118605999569 is a prime.

It is a super-2 number, since 2×118606000081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118606003081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59303000040 + 59303000041.

It is an arithmetic number, because the mean of its divisors is an integer number (59303000041).

Almost surely, 2^118606000081 is an apocalyptic number.

It is an amenable number.

118606000081 is a deficient number, since it is larger than the sum of its proper divisors (1).

118606000081 is an equidigital number, since it uses as much as digits as its factorization.

118606000081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 31.

Adding to 118606000081 its reverse (180000606811), we get a palindrome (298606606892).

The spelling of 118606000081 in words is "one hundred eighteen billion, six hundred six million, eighty-one", and thus it is an aban number.