669669481006 has 4 divisors (see below), whose sum is σ = 1004504221512. Its totient is φ = 334834740502.

The previous prime is 669669480979. The next prime is 669669481037. The reversal of 669669481006 is 600184966966.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167417370250 + ... + 167417370253.

It is an arithmetic number, because the mean of its divisors is an integer number (251126055378).

Almost surely, 2^669669481006 is an apocalyptic number.

669669481006 is a deficient number, since it is larger than the sum of its proper divisors (334834740506).

669669481006 is a wasteful number, since it uses less digits than its factorization.

669669481006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334834740505.

The product of its (nonzero) digits is 20155392, while the sum is 61.

The spelling of 669669481006 in words is "six hundred sixty-nine billion, six hundred sixty-nine million, four hundred eighty-one thousand, six".