1165443052187 has 2 divisors, whose sum is σ = 1165443052188. Its totient is φ = 1165443052186.

The previous prime is 1165443052183. The next prime is 1165443052201. The reversal of 1165443052187 is 7812503445611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1165443052187 - 2² = 1165443052183 is a prime.

It is not a weakly prime, because it can be changed into another prime (1165443052181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582721526093 + 582721526094.

It is an arithmetic number, because the mean of its divisors is an integer number (582721526094).

Almost surely, 2^{1165443052187} is an apocalyptic number.

1165443052187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165443052187 is an equidigital number, since it uses as much as digits as its factorization.

1165443052187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 806400, while the sum is 47.

Adding to 1165443052187 its reverse (7812503445611), we get a palindrome (8977946497798).

The spelling of 1165443052187 in words is "one trillion, one hundred sixty-five billion, four hundred forty-three million, fifty-two thousand, one hundred eighty-seven".