2135255168 has 16 divisors (see below), whose sum is σ = 4253828910. Its totient is φ = 1067627520.

The previous prime is 2135255081. The next prime is 2135255189. The reversal of 2135255168 is 8615525312.

It can be written as a sum of positive squares in only one way, i.e., 1873850944 + 261404224 = 43288^2 + 16168^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8340713 + ... + 8340968.

Almost surely, 2^2135255168 is an apocalyptic number.

It is an amenable number.

2135255168 is a deficient number, since it is larger than the sum of its proper divisors (2118573742).

2135255168 is an equidigital number, since it uses as much as digits as its factorization.

2135255168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16681695 (or 16681683 counting only the distinct ones).

The product of its digits is 72000, while the sum is 38.

The square root of 2135255168 is about 46208.8213223406. The cubic root of 2135255168 is about 1287.7056282373.

The spelling of 2135255168 in words is "two billion, one hundred thirty-five million, two hundred fifty-five thousand, one hundred sixty-eight".