6663003445 has 16 divisors (see below), whose sum is σ = 9432603648. Its totient is φ = 4421531520.

The previous prime is 6663003427. The next prime is 6663003461. The reversal of 6663003445 is 5443003666.

It is not a de Polignac number, because 6663003445 - 2²⁷ = 6528785717 is a prime.

It is a super-2 number, since 2×6663003445² = 88791229816163736050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 3069424 + ... + 3071593.

It is an arithmetic number, because the mean of its divisors is an integer number (589537728).

Almost surely, 2^6663003445 is an apocalyptic number.

It is an amenable number.

6663003445 is a deficient number, since it is larger than the sum of its proper divisors (2769600203).

6663003445 is a wasteful number, since it uses less digits than its factorization.

6663003445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6141060.

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 6663003445 is about 81627.2224506016. Note that the first 3 decimals coincide. The cubic root of 6663003445 is about 1881.7272722460.

The spelling of 6663003445 in words is "six billion, six hundred sixty-three million, three thousand, four hundred forty-five".