664865946006 has 8 divisors (see below), whose sum is σ = 1329731892024. Its totient is φ = 221621982000.

The previous prime is 664865945981. The next prime is 664865946047. The reversal of 664865946006 is 600649568466.

664865946006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

664865946006 is an admirable number.

It is a super-3 number, since 3×664865946006³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55405495495 + ... + 55405495506.

It is an arithmetic number, because the mean of its divisors is an integer number (166216486503).

Almost surely, 2^664865946006 is an apocalyptic number.

664865946006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

664865946006 is a wasteful number, since it uses less digits than its factorization.

664865946006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110810991006.

The product of its (nonzero) digits is 44789760, while the sum is 60.

The spelling of 664865946006 in words is "six hundred sixty-four billion, eight hundred sixty-five million, nine hundred forty-six thousand, six".