6606336021 has 16 divisors (see below), whose sum is σ = 8833413120. Its totient is φ = 4391760240.

The previous prime is 6606336007. The next prime is 6606336031. The reversal of 6606336021 is 1206336066.

It is a happy number.

It is not a de Polignac number, because 6606336021 - 2⁷ = 6606335893 is a prime.

It is a super-2 number, since 2×6606336021² = 87287351244724224882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6606336001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2483190 + ... + 2485848.

It is an arithmetic number, because the mean of its divisors is an integer number (552088320).

Almost surely, 2^6606336021 is an apocalyptic number.

It is an amenable number.

6606336021 is a deficient number, since it is larger than the sum of its proper divisors (2227077099).

6606336021 is a wasteful number, since it uses less digits than its factorization.

6606336021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4696.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 6606336021 is about 81279.3702054833. The cubic root of 6606336021 is about 1876.3775141636.

The spelling of 6606336021 in words is "six billion, six hundred six million, three hundred thirty-six thousand, twenty-one".