6628132285 has 4 divisors (see below), whose sum is σ = 7953758748. Its totient is φ = 5302505824.

The previous prime is 6628132253. The next prime is 6628132321. The reversal of 6628132285 is 5822318266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5822318266 = 2 ⋅2911159133.

It can be written as a sum of positive squares in 2 ways, for example, as 1388978361 + 5239153924 = 37269^2 + 72382^2 .

It is a cyclic number.

It is not a de Polignac number, because 6628132285 - 2⁵ = 6628132253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662813224 + ... + 662813233.

It is an arithmetic number, because the mean of its divisors is an integer number (1988439687).

Almost surely, 2^6628132285 is an apocalyptic number.

It is an amenable number.

6628132285 is a deficient number, since it is larger than the sum of its proper divisors (1325626463).

6628132285 is a wasteful number, since it uses less digits than its factorization.

6628132285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325626462.

The product of its digits is 276480, while the sum is 43.

The square root of 6628132285 is about 81413.3421805050. The cubic root of 6628132285 is about 1878.4388243743.

The spelling of 6628132285 in words is "six billion, six hundred twenty-eight million, one hundred thirty-two thousand, two hundred eighty-five".