664466007 has 8 divisors (see below), whose sum is σ = 887189760. Its totient is φ = 442359800.

The previous prime is 664465999. The next prime is 664466039. The reversal of 664466007 is 700664466.

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 664466007 - 2³ = 664465999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664466707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151869 + ... + 156182.

It is an arithmetic number, because the mean of its divisors is an integer number (110898720).

Almost surely, 2^664466007 is an apocalyptic number.

664466007 is a deficient number, since it is larger than the sum of its proper divisors (222723753).

664466007 is a wasteful number, since it uses less digits than its factorization.

664466007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308773.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 664466007 is about 25777.2381569477. The cubic root of 664466007 is about 872.6181784789.

The spelling of 664466007 in words is "six hundred sixty-four million, four hundred sixty-six thousand, seven".