632603810081 has 4 divisors (see below), whose sum is σ = 632865543492. Its totient is φ = 632342076672.

The previous prime is 632603810057. The next prime is 632603810099. The reversal of 632603810081 is 180018306236.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 430965990400 + 201637819681 = 656480^2 + 449041^2 .

It is a cyclic number.

It is not a de Polignac number, because 632603810081 - 2¹⁴ = 632603793697 is a prime.

It is a super-2 number, since 2×632603810081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (632603810281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130863080 + ... + 130867913.

It is an arithmetic number, because the mean of its divisors is an integer number (158216385873).

Almost surely, 2^632603810081 is an apocalyptic number.

It is an amenable number.

632603810081 is a deficient number, since it is larger than the sum of its proper divisors (261733411).

632603810081 is a wasteful number, since it uses less digits than its factorization.

632603810081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261733410.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 632603810081 in words is "six hundred thirty-two billion, six hundred three million, eight hundred ten thousand, eighty-one".