6653468557 has 2 divisors, whose sum is σ = 6653468558. Its totient is φ = 6653468556.

The previous prime is 6653468537. The next prime is 6653468581. The reversal of 6653468557 is 7558643566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4223570121 + 2429898436 = 64989^2 + 49294^2 .

It is a cyclic number.

It is not a de Polignac number, because 6653468557 - 2³¹ = 4505984909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6653468498 and 6653468507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6653468537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3326734278 + 3326734279.

It is an arithmetic number, because the mean of its divisors is an integer number (3326734279).

Almost surely, 2^6653468557 is an apocalyptic number.

It is an amenable number.

6653468557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6653468557 is an equidigital number, since it uses as much as digits as its factorization.

6653468557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144000, while the sum is 55.

The square root of 6653468557 is about 81568.7964665411. The cubic root of 6653468557 is about 1880.8292475927.

The spelling of 6653468557 in words is "six billion, six hundred fifty-three million, four hundred sixty-eight thousand, five hundred fifty-seven".