6638022003 has 4 divisors (see below), whose sum is σ = 8850696008. Its totient is φ = 4425348000.

The previous prime is 6638021993. The next prime is 6638022007. The reversal of 6638022003 is 3002208366.

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

It is not a de Polignac number, because 6638022003 - 2⁶ = 6638021939 is a prime.

It is a super-2 number, since 2×6638022003² = 88126672224624264018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6638022007) 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, 1106336998 + ... + 1106337003.

It is an arithmetic number, because the mean of its divisors is an integer number (2212674002).

Almost surely, 2^6638022003 is an apocalyptic number.

6638022003 is a deficient number, since it is larger than the sum of its proper divisors (2212674005).

6638022003 is a wasteful number, since it uses less digits than its factorization.

6638022003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212674004.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 6638022003 is about 81474.0572390991. The cubic root of 6638022003 is about 1879.3726217862.

The spelling of 6638022003 in words is "six billion, six hundred thirty-eight million, twenty-two thousand, three".