1118610687157 has 2 divisors, whose sum is σ = 1118610687158. Its totient is φ = 1118610687156.

The previous prime is 1118610687143. The next prime is 1118610687179. The reversal of 1118610687157 is 7517860168111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1118029202161 + 581484996 = 1057369^2 + 24114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118610687157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118610687127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559305343578 + 559305343579.

It is an arithmetic number, because the mean of its divisors is an integer number (559305343579).

Almost surely, 2^{1118610687157} is an apocalyptic number.

It is an amenable number.

1118610687157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118610687157 is an equidigital number, since it uses as much as digits as its factorization.

1118610687157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 52.

The spelling of 1118610687157 in words is "one trillion, one hundred eighteen billion, six hundred ten million, six hundred eighty-seven thousand, one hundred fifty-seven".