2165102156 has 12 divisors (see below), whose sum is σ = 4330204368. Its totient is φ = 927900912.

The previous prime is 2165102153. The next prime is 2165102161. The reversal of 2165102156 is 6512015612.

It is a happy number.

2165102156 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2165102153) 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, 38662511 + ... + 38662566.

It is an arithmetic number, because the mean of its divisors is an integer number (360850364).

Almost surely, 2^2165102156 is an apocalyptic number.

It is an amenable number.

2165102156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2165102156 is a wasteful number, since it uses less digits than its factorization.

2165102156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77325088 (or 77325086 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2165102156 is about 46530.6582373385. The cubic root of 2165102156 is about 1293.6778157086.

Adding to 2165102156 its reverse (6512015612), we get a palindrome (8677117768).

The spelling of 2165102156 in words is "two billion, one hundred sixty-five million, one hundred two thousand, one hundred fifty-six".