669138325333 has 4 divisors (see below), whose sum is σ = 671938067520. Its totient is φ = 666338583148.

The previous prime is 669138325301. The next prime is 669138325351. The reversal of 669138325333 is 333523831966.

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 669138325333 - 2⁵ = 669138325301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669138305333) 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, 1399870735 + ... + 1399871212.

It is an arithmetic number, because the mean of its divisors is an integer number (167984516880).

Almost surely, 2^669138325333 is an apocalyptic number.

It is an amenable number.

669138325333 is a deficient number, since it is larger than the sum of its proper divisors (2799742187).

669138325333 is a wasteful number, since it uses less digits than its factorization.

669138325333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799742186.

The product of its digits is 6298560, while the sum is 52.

The spelling of 669138325333 in words is "six hundred sixty-nine billion, one hundred thirty-eight million, three hundred twenty-five thousand, three hundred thirty-three".