8668665053 has 4 divisors (see below), whose sum is σ = 8673866880. Its totient is φ = 8663463228.

The previous prime is 8668665029. The next prime is 8668665073. The reversal of 8668665053 is 3505668668.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8668665053 - 2¹⁶ = 8668599517 is a prime.

It is a super-2 number, since 2×8668665053² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8668664986 and 8668665004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8668665073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2598413 + ... + 2601746.

It is an arithmetic number, because the mean of its divisors is an integer number (2168466720).

Almost surely, 2^8668665053 is an apocalyptic number.

It is an amenable number.

8668665053 is a deficient number, since it is larger than the sum of its proper divisors (5201827).

8668665053 is a wasteful number, since it uses less digits than its factorization.

8668665053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201826.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The square root of 8668665053 is about 93105.6660628127. Note that the first 3 decimals coincide. The cubic root of 8668665053 is about 2054.2379157895.

The spelling of 8668665053 in words is "eight billion, six hundred sixty-eight million, six hundred sixty-five thousand, fifty-three".