6660165347 has 4 divisors (see below), whose sum is σ = 7265634936. Its totient is φ = 6054695760.

The previous prime is 6660165329. The next prime is 6660165349. The reversal of 6660165347 is 7435610666.

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

It is a cyclic number.

It is not a de Polignac number, because 6660165347 - 2²⁴ = 6643388131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6660165298 and 6660165307.

It is not an unprimeable number, because it can be changed into a prime (6660165349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302734778 + ... + 302734799.

It is an arithmetic number, because the mean of its divisors is an integer number (1816408734).

Almost surely, 2^6660165347 is an apocalyptic number.

6660165347 is a deficient number, since it is larger than the sum of its proper divisors (605469589).

6660165347 is a wasteful number, since it uses less digits than its factorization.

6660165347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605469588.

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 6660165347 is about 81609.8360922260. The cubic root of 6660165347 is about 1881.4600611755.

The spelling of 6660165347 in words is "six billion, six hundred sixty million, one hundred sixty-five thousand, three hundred forty-seven".