6659442485 has 16 divisors (see below), whose sum is σ = 8079906816. Its totient is φ = 5268771648.

The previous prime is 6659442479. The next prime is 6659442497. The reversal of 6659442485 is 5842449566.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6659442485 - 2⁴ = 6659442469 is a prime.

It is a super-2 number, since 2×6659442485² = 88696348422045950450, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 184754 + ... + 217836.

It is an arithmetic number, because the mean of its divisors is an integer number (504994176).

Almost surely, 2^6659442485 is an apocalyptic number.

It is an amenable number.

6659442485 is a deficient number, since it is larger than the sum of its proper divisors (1420464331).

6659442485 is a wasteful number, since it uses less digits than its factorization.

6659442485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33532.

The product of its digits is 8294400, while the sum is 53.

The square root of 6659442485 is about 81605.4072044249. The cubic root of 6659442485 is about 1881.3919905337.

The spelling of 6659442485 in words is "six billion, six hundred fifty-nine million, four hundred forty-two thousand, four hundred eighty-five".