6634161018 has 24 divisors (see below), whose sum is σ = 14609657556. Its totient is φ = 2175134400.

The previous prime is 6634161007. The next prime is 6634161041. The reversal of 6634161018 is 8101614366.

6634161018 is a `hidden beast` number, since 6 + 6 + 34 + 1 + 610 + 1 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4940262369 + 1693898649 = 70287^2 + 41157^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3019923 + ... + 3022118.

Almost surely, 2^6634161018 is an apocalyptic number.

6634161018 is an abundant number, since it is smaller than the sum of its proper divisors (7975496538).

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

6634161018 is a wasteful number, since it uses less digits than its factorization.

6634161018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042110 (or 6042107 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 6634161018 is about 81450.3592257272. The cubic root of 6634161018 is about 1879.0081740231.

The spelling of 6634161018 in words is "six billion, six hundred thirty-four million, one hundred sixty-one thousand, eighteen".