6606061667 has 4 divisors (see below), whose sum is σ = 6609388296. Its totient is φ = 6602735040.

The previous prime is 6606061643. The next prime is 6606061681. The reversal of 6606061667 is 7661606066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6606061667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6606061367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1660334 + ... + 1664307.

It is an arithmetic number, because the mean of its divisors is an integer number (1652347074).

Almost surely, 2^6606061667 is an apocalyptic number.

6606061667 is a deficient number, since it is larger than the sum of its proper divisors (3326629).

6606061667 is a wasteful number, since it uses less digits than its factorization.

6606061667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326628.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 6606061667 is about 81277.6824657298. The cubic root of 6606061667 is about 1876.3515391601.

The spelling of 6606061667 in words is "six billion, six hundred six million, sixty-one thousand, six hundred sixty-seven".