6660162907 has 4 divisors (see below), whose sum is σ = 6726105216. Its totient is φ = 6594220600.

The previous prime is 6660162893. The next prime is 6660162917. The reversal of 6660162907 is 7092610666.

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-6660162907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6660162917) 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, 32971003 + ... + 32971204.

It is an arithmetic number, because the mean of its divisors is an integer number (1681526304).

Almost surely, 2^6660162907 is an apocalyptic number.

6660162907 is a deficient number, since it is larger than the sum of its proper divisors (65942309).

6660162907 is a wasteful number, since it uses less digits than its factorization.

6660162907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65942308.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 6660162907 is about 81609.8211430463. The cubic root of 6660162907 is about 1881.4598314133.

The spelling of 6660162907 in words is "six billion, six hundred sixty million, one hundred sixty-two thousand, nine hundred seven".