1116005906857 has 2 divisors, whose sum is σ = 1116005906858. Its totient is φ = 1116005906856.

The previous prime is 1116005906849. The next prime is 1116005906893. The reversal of 1116005906857 is 7586095006111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1032629921856 + 83375985001 = 1016184^2 + 288749^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116005906857 - 2³ = 1116005906849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1116005906857.

It is not a weakly prime, because it can be changed into another prime (1116005906657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558002953428 + 558002953429.

It is an arithmetic number, because the mean of its divisors is an integer number (558002953429).

Almost surely, 2^{1116005906857} is an apocalyptic number.

It is an amenable number.

1116005906857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116005906857 is an equidigital number, since it uses as much as digits as its factorization.

1116005906857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 1116005906857 in words is "one trillion, one hundred sixteen billion, five million, nine hundred six thousand, eight hundred fifty-seven".