2152611165 has 32 divisors (see below), whose sum is σ = 3568717440. Its totient is φ = 1107282176.

The previous prime is 2152611133. The next prime is 2152611169. The reversal of 2152611165 is 5611162512.

It is a cyclic number.

It is not a de Polignac number, because 2152611165 - 2⁵ = 2152611133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152611169) 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, 23959 + ... + 69851.

It is an arithmetic number, because the mean of its divisors is an integer number (111522420).

Almost surely, 2^2152611165 is an apocalyptic number.

It is an amenable number.

2152611165 is a deficient number, since it is larger than the sum of its proper divisors (1416106275).

2152611165 is a wasteful number, since it uses less digits than its factorization.

2152611165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46013.

The product of its digits is 3600, while the sum is 30.

The square root of 2152611165 is about 46396.2408498792. The cubic root of 2152611165 is about 1291.1851706466.

Adding to 2152611165 its reverse (5611162512), we get a palindrome (7763773677).

The spelling of 2152611165 in words is "two billion, one hundred fifty-two million, six hundred eleven thousand, one hundred sixty-five".