5366638081 has 16 divisors (see below), whose sum is σ = 6515009280. Its totient is φ = 4315438080.

The previous prime is 5366638063. The next prime is 5366638087. The reversal of 5366638081 is 1808366635.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5366638081 - 2¹⁷ = 5366507009 is a prime.

It is a super-2 number, since 2×5366638081² = 57601608584878725122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5366638087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35496 + ... + 109513.

It is an arithmetic number, because the mean of its divisors is an integer number (407188080).

Almost surely, 2^5366638081 is an apocalyptic number.

It is an amenable number.

5366638081 is a deficient number, since it is larger than the sum of its proper divisors (1148371199).

5366638081 is a wasteful number, since it uses less digits than its factorization.

5366638081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145344.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 5366638081 is about 73257.3414819293. The cubic root of 5366638081 is about 1750.7901825814.

The spelling of 5366638081 in words is "five billion, three hundred sixty-six million, six hundred thirty-eight thousand, eighty-one".