6659922529 has 16 divisors (see below), whose sum is σ = 7430850000. Its totient is φ = 5926588416.

The previous prime is 6659922487. The next prime is 6659922539. The reversal of 6659922529 is 9252299566.

It can be written as a sum of positive squares in 8 ways, for example, as 108638929 + 6551283600 = 10423^2 + 80940^2 .

It is a cyclic number.

It is not a de Polignac number, because 6659922529 - 2¹³ = 6659914337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6659922529.

It is not an unprimeable number, because it can be changed into a prime (6659922539) 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 15 ways as a sum of consecutive naturals, for example, 240597 + ... + 266845.

It is an arithmetic number, because the mean of its divisors is an integer number (464428125).

Almost surely, 2^6659922529 is an apocalyptic number.

It is an amenable number.

6659922529 is a deficient number, since it is larger than the sum of its proper divisors (770927471).

6659922529 is a wasteful number, since it uses less digits than its factorization.

6659922529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26964.

The product of its digits is 5248800, while the sum is 55.

The square root of 6659922529 is about 81608.3484025991. The cubic root of 6659922529 is about 1881.4371959813.

The spelling of 6659922529 in words is "six billion, six hundred fifty-nine million, nine hundred twenty-two thousand, five hundred twenty-nine".