668032324061 has 4 divisors (see below), whose sum is σ = 668175591072. Its totient is φ = 667889057052.

The previous prime is 668032324033. The next prime is 668032324093. The reversal of 668032324061 is 160423230866.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 668032324061 - 2²² = 668028129757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668032324031) 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, 71626511 + ... + 71635836.

It is an arithmetic number, because the mean of its divisors is an integer number (167043897768).

Almost surely, 2^668032324061 is an apocalyptic number.

It is an amenable number.

668032324061 is a deficient number, since it is larger than the sum of its proper divisors (143267011).

668032324061 is a wasteful number, since it uses less digits than its factorization.

668032324061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143267010.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 668032324061 in words is "six hundred sixty-eight billion, thirty-two million, three hundred twenty-four thousand, sixty-one".