1158518493599 has 4 divisors (see below), whose sum is σ = 1158807621264. Its totient is φ = 1158229365936.

The previous prime is 1158518493571. The next prime is 1158518493683. The reversal of 1158518493599 is 9953948158511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1158518493599 - 2⁸ = 1158518493343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158518499599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144557822 + ... + 144565835.

It is an arithmetic number, because the mean of its divisors is an integer number (289701905316).

Almost surely, 2^{1158518493599} is an apocalyptic number.

1158518493599 is a deficient number, since it is larger than the sum of its proper divisors (289127665).

1158518493599 is an equidigital number, since it uses as much as digits as its factorization.

1158518493599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289127664.

The product of its digits is 69984000, while the sum is 68.

The spelling of 1158518493599 in words is "one trillion, one hundred fifty-eight billion, five hundred eighteen million, four hundred ninety-three thousand, five hundred ninety-nine".