6669615585 has 8 divisors (see below), whose sum is σ = 10671384960. Its totient is φ = 3557128304.

The previous prime is 6669615569. The next prime is 6669615599. The reversal of 6669615585 is 5855169666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6669615585 - 2⁴ = 6669615569 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222320505 + ... + 222320534.

It is an arithmetic number, because the mean of its divisors is an integer number (1333923120).

Almost surely, 2^6669615585 is an apocalyptic number.

It is an amenable number.

6669615585 is a deficient number, since it is larger than the sum of its proper divisors (4001769375).

6669615585 is a wasteful number, since it uses less digits than its factorization.

6669615585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444641047.

The product of its digits is 11664000, while the sum is 57.

The square root of 6669615585 is about 81667.7144592647. The cubic root of 6669615585 is about 1882.3495206951.

The spelling of 6669615585 in words is "six billion, six hundred sixty-nine million, six hundred fifteen thousand, five hundred eighty-five".