660326001 has 8 divisors (see below), whose sum is σ = 882588960. Its totient is φ = 439140192.

The previous prime is 660325973. The next prime is 660326011. The reversal of 660326001 is 100623066.

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

It is not a de Polignac number, because 660326001 - 2⁷ = 660325873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (660326011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267855 + ... + 270308.

It is an arithmetic number, because the mean of its divisors is an integer number (110323620).

Almost surely, 2^660326001 is an apocalyptic number.

It is an amenable number.

660326001 is a deficient number, since it is larger than the sum of its proper divisors (222262959).

660326001 is a wasteful number, since it uses less digits than its factorization.

660326001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538575.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 660326001 is about 25696.8091598938. The cubic root of 660326001 is about 870.8020968494.

Adding to 660326001 its reverse (100623066), we get a palindrome (760949067).

The spelling of 660326001 in words is "six hundred sixty million, three hundred twenty-six thousand, one".