6608506997 has 4 divisors (see below), whose sum is σ = 6652272096. Its totient is φ = 6564741900.

The previous prime is 6608506939. The next prime is 6608507029. The reversal of 6608506997 is 7996058066.

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 a cyclic number.

It is not a de Polignac number, because 6608506997 - 2¹⁴ = 6608490613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6608506897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21882323 + ... + 21882624.

It is an arithmetic number, because the mean of its divisors is an integer number (1663068024).

Almost surely, 2^6608506997 is an apocalyptic number.

It is an amenable number.

6608506997 is a deficient number, since it is larger than the sum of its proper divisors (43765099).

6608506997 is a wasteful number, since it uses less digits than its factorization.

6608506997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43765098.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The square root of 6608506997 is about 81292.7241332212. The cubic root of 6608506997 is about 1876.5830302217.

The spelling of 6608506997 in words is "six billion, six hundred eight million, five hundred six thousand, nine hundred ninety-seven".