665566348 has 6 divisors (see below), whose sum is σ = 1164741116. Its totient is φ = 332783172.

The previous prime is 665566339. The next prime is 665566357. The reversal of 665566348 is 843665566.

It is an interprime number because it is at equal distance from previous prime (665566339) and next prime (665566357).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 83195790 + ... + 83195797.

Almost surely, 2^665566348 is an apocalyptic number.

It is an amenable number.

665566348 is a deficient number, since it is larger than the sum of its proper divisors (499174768).

665566348 is a wasteful number, since it uses less digits than its factorization.

665566348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166391591 (or 166391589 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 49.

The square root of 665566348 is about 25798.5725961728. The cubic root of 665566348 is about 873.0995916363.

The spelling of 665566348 in words is "six hundred sixty-five million, five hundred sixty-six thousand, three hundred forty-eight".