5633128161 has 12 divisors (see below), whose sum is σ = 8290264788. Its totient is φ = 3684561504.

The previous prime is 5633128157. The next prime is 5633128169. The reversal of 5633128161 is 1618213365.

5633128161 is a `hidden beast` number, since 5 + 633 + 1 + 2 + 8 + 16 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1549918161 + 4083210000 = 39369^2 + 63900^2 .

It is not a de Polignac number, because 5633128161 - 2² = 5633128157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5633128169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5904270 + ... + 5905223.

It is an arithmetic number, because the mean of its divisors is an integer number (690855399).

Almost surely, 2^5633128161 is an apocalyptic number.

It is an amenable number.

5633128161 is a deficient number, since it is larger than the sum of its proper divisors (2657136627).

5633128161 is a wasteful number, since it uses less digits than its factorization.

5633128161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11809552 (or 11809549 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 5633128161 is about 75054.1681787228. The cubic root of 5633128161 is about 1779.3028622326.

The spelling of 5633128161 in words is "five billion, six hundred thirty-three million, one hundred twenty-eight thousand, one hundred sixty-one".