6690338533 has 8 divisors (see below), whose sum is σ = 6797909952. Its totient is φ = 6582994176.

The previous prime is 6690338519. The next prime is 6690338561. The reversal of 6690338533 is 3358330966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6690338533 - 2²¹ = 6688241381 is a prime.

It is a super-2 number, since 2×6690338533² = 89521259372289184178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690338513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3141 + ... + 115717.

It is an arithmetic number, because the mean of its divisors is an integer number (849738744).

Almost surely, 2^6690338533 is an apocalyptic number.

It is an amenable number.

6690338533 is a deficient number, since it is larger than the sum of its proper divisors (107571419).

6690338533 is a wasteful number, since it uses less digits than its factorization.

6690338533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113531.

The product of its (nonzero) digits is 1049760, while the sum is 46.

The square root of 6690338533 is about 81794.4896249130. The cubic root of 6690338533 is about 1884.2970342781.

The spelling of 6690338533 in words is "six billion, six hundred ninety million, three hundred thirty-eight thousand, five hundred thirty-three".