1160558999 has 4 divisors (see below), whose sum is σ = 1169418360. Its totient is φ = 1151699640.

The previous prime is 1160558981. The next prime is 1160559013. The reversal of 1160558999 is 9998550611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9998550611 = 7 ⋅1428364373.

It is a cyclic number.

It is not a de Polignac number, because 1160558999 - 2²⁴ = 1143781783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1160558999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1160558299) 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, 4429484 + ... + 4429745.

It is an arithmetic number, because the mean of its divisors is an integer number (292354590).

Almost surely, 2^1160558999 is an apocalyptic number.

1160558999 is a deficient number, since it is larger than the sum of its proper divisors (8859361).

1160558999 is an equidigital number, since it uses as much as digits as its factorization.

1160558999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8859360.

The product of its (nonzero) digits is 874800, while the sum is 53.

The square root of 1160558999 is about 34066.9781313224. The cubic root of 1160558999 is about 1050.8863261513.

The spelling of 1160558999 in words is "one billion, one hundred sixty million, five hundred fifty-eight thousand, nine hundred ninety-nine".