1158376485599 has 4 divisors (see below), whose sum is σ = 1174691647440. Its totient is φ = 1142061323760.

The previous prime is 1158376485593. The next prime is 1158376485611. The reversal of 1158376485599 is 9955846738511.

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 1158376485599 - 2⁴ = 1158376485583 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71), and also a Moran number because the ratio is a prime number: 16315161769 = 1158376485599 / (1 + 1 + 5 + 8 + 3 + 7 + 6 + 4 + 8 + 5 + 5 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158376485593) 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, 8157580814 + ... + 8157580955.

It is an arithmetic number, because the mean of its divisors is an integer number (293672911860).

Almost surely, 2^{1158376485599} is an apocalyptic number.

1158376485599 is a deficient number, since it is larger than the sum of its proper divisors (16315161841).

1158376485599 is an equidigital number, since it uses as much as digits as its factorization.

1158376485599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16315161840.

The product of its digits is 326592000, while the sum is 71.

The spelling of 1158376485599 in words is "one trillion, one hundred fifty-eight billion, three hundred seventy-six million, four hundred eighty-five thousand, five hundred ninety-nine".