2609116168 has 32 divisors (see below), whose sum is σ = 4958415000. Its totient is φ = 1286940160.

The previous prime is 2609116129. The next prime is 2609116177. The reversal of 2609116168 is 8616119062.

It can be written as a sum of positive squares in 4 ways, for example, as 1625541124 + 983575044 = 40318^2 + 31362^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2609116168.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324258 + ... + 332206.

Almost surely, 2^2609116168 is an apocalyptic number.

It is an amenable number.

2609116168 is a deficient number, since it is larger than the sum of its proper divisors (2349298832).

2609116168 is a wasteful number, since it uses less digits than its factorization.

2609116168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8505 (or 8501 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 2609116168 is about 51079.5082983382. The cubic root of 2609116168 is about 1376.6740897288.

The spelling of 2609116168 in words is "two billion, six hundred nine million, one hundred sixteen thousand, one hundred sixty-eight".