6339540066 has 16 divisors (see below), whose sum is σ = 12797577504. Its totient is φ = 2093430464.

The previous prime is 6339540013. The next prime is 6339540073. The reversal of 6339540066 is 6600459336.

It is an unprimeable number.

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, 4936695 + ... + 4937978.

It is an arithmetic number, because the mean of its divisors is an integer number (799848594).

Almost surely, 2^6339540066 is an apocalyptic number.

6339540066 is an abundant number, since it is smaller than the sum of its proper divisors (6458037438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6339540066 is a wasteful number, since it uses less digits than its factorization.

6339540066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9874785.

The product of its (nonzero) digits is 349920, while the sum is 42.

The square root of 6339540066 is about 79621.2287395767. The cubic root of 6339540066 is about 1850.7705644141.

The spelling of 6339540066 in words is "six billion, three hundred thirty-nine million, five hundred forty thousand, sixty-six".