669919134 has 8 divisors (see below), whose sum is σ = 1339838280. Its totient is φ = 223306376.

The previous prime is 669919127. The next prime is 669919171. The reversal of 669919134 is 431919966.

It is a sphenic number, since it is the product of 3 distinct primes.

669919134 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55826589 + ... + 55826600.

It is an arithmetic number, because the mean of its divisors is an integer number (167479785).

Almost surely, 2^669919134 is an apocalyptic number.

669919134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669919134 is a wasteful number, since it uses less digits than its factorization.

669919134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111653194.

The product of its digits is 314928, while the sum is 48.

The square root of 669919134 is about 25882.7961008852. The cubic root of 669919134 is about 874.9988066378.

The spelling of 669919134 in words is "six hundred sixty-nine million, nine hundred nineteen thousand, one hundred thirty-four".