1118061165 has 64 divisors (see below), whose sum is σ = 2033579520. Its totient is φ = 520396800.

The previous prime is 1118061149. The next prime is 1118061169. The reversal of 1118061165 is 5611608111.

It is not a de Polignac number, because 1118061165 - 2⁴ = 1118061149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118061169) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 397765 + ... + 400565.

It is an arithmetic number, because the mean of its divisors is an integer number (31774680).

Almost surely, 2^1118061165 is an apocalyptic number.

1118061165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1118061165 is a deficient number, since it is larger than the sum of its proper divisors (915518355).

1118061165 is a wasteful number, since it uses less digits than its factorization.

1118061165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934.

The product of its (nonzero) digits is 1440, while the sum is 30.

The square root of 1118061165 is about 33437.4216260764. The cubic root of 1118061165 is about 1037.8992248867.

Adding to 1118061165 its reverse (5611608111), we get a palindrome (6729669276).

The spelling of 1118061165 in words is "one billion, one hundred eighteen million, sixty-one thousand, one hundred sixty-five".