6669053553 has 4 divisors (see below), whose sum is σ = 8892071408. Its totient is φ = 4446035700.

The previous prime is 6669053543. The next prime is 6669053581. The reversal of 6669053553 is 3553509666.

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 not a de Polignac number, because 6669053553 - 2⁴ = 6669053537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6669053543) 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, 1111508923 + ... + 1111508928.

It is an arithmetic number, because the mean of its divisors is an integer number (2223017852).

Almost surely, 2^6669053553 is an apocalyptic number.

It is an amenable number.

6669053553 is a deficient number, since it is larger than the sum of its proper divisors (2223017855).

6669053553 is a wasteful number, since it uses less digits than its factorization.

6669053553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223017854.

The product of its (nonzero) digits is 2187000, while the sum is 48.

The square root of 6669053553 is about 81664.2734186743. The cubic root of 6669053553 is about 1882.2966455646.

The spelling of 6669053553 in words is "six billion, six hundred sixty-nine million, fifty-three thousand, five hundred fifty-three".