1165150065 has 32 divisors (see below), whose sum is σ = 1901882880. Its totient is φ = 608984064.

The previous prime is 1165150043. The next prime is 1165150067. The reversal of 1165150065 is 5600515611.

It is not a de Polignac number, because 1165150065 - 2²³ = 1156761457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165150067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158757 + ... + 165933.

It is an arithmetic number, because the mean of its divisors is an integer number (59433840).

Almost surely, 2^1165150065 is an apocalyptic number.

1165150065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1165150065 is a deficient number, since it is larger than the sum of its proper divisors (736732815).

1165150065 is a wasteful number, since it uses less digits than its factorization.

1165150065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7401.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 1165150065 is about 34134.2945584056. The cubic root of 1165150065 is about 1052.2702398289.

Adding to 1165150065 its reverse (5600515611), we get a palindrome (6765665676).

It can be divided in two parts, 11651 and 50065, that added together give a palindrome (61716).

The spelling of 1165150065 in words is "one billion, one hundred sixty-five million, one hundred fifty thousand, sixty-five".