660968323 has 4 divisors (see below), whose sum is σ = 670277808. Its totient is φ = 651658840.

The previous prime is 660968317. The next prime is 660968369. The reversal of 660968323 is 323869066.

660968323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 660968323 - 2²⁹ = 124097411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 660968323.

It is not an unprimeable number, because it can be changed into a prime (660968303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4654636 + ... + 4654777.

It is an arithmetic number, because the mean of its divisors is an integer number (167569452).

Almost surely, 2^660968323 is an apocalyptic number.

660968323 is a deficient number, since it is larger than the sum of its proper divisors (9309485).

660968323 is an equidigital number, since it uses as much as digits as its factorization.

660968323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9309484.

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 660968323 is about 25709.3042107327. The cubic root of 660968323 is about 871.0843584798.

The spelling of 660968323 in words is "six hundred sixty million, nine hundred sixty-eight thousand, three hundred twenty-three".