668048824371 has 4 divisors (see below), whose sum is σ = 890731765832. Its totient is φ = 445365882912.

The previous prime is 668048824369. The next prime is 668048824381. The reversal of 668048824371 is 173428840866.

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

It is not a de Polignac number, because 668048824371 - 2¹ = 668048824369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668048824361) 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 3 ways as a sum of consecutive naturals, for example, 111341470726 + ... + 111341470731.

It is an arithmetic number, because the mean of its divisors is an integer number (222682941458).

Almost surely, 2^668048824371 is an apocalyptic number.

668048824371 is a deficient number, since it is larger than the sum of its proper divisors (222682941461).

668048824371 is a wasteful number, since it uses less digits than its factorization.

668048824371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222682941460.

The product of its (nonzero) digits is 12386304, while the sum is 57.

The spelling of 668048824371 in words is "six hundred sixty-eight billion, forty-eight million, eight hundred twenty-four thousand, three hundred seventy-one".