669773104 has 320 divisors, whose sum is σ = 1919877120. Its totient is φ = 217728000.

The previous prime is 669773099. The next prime is 669773173. The reversal of 669773104 is 401377966.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9433389 + ... + 9433459.

It is an arithmetic number, because the mean of its divisors is an integer number (5999616).

Almost surely, 2^669773104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669773104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959938560).

669773104 is an abundant number, since it is smaller than the sum of its proper divisors (1250104016).

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

669773104 is a wasteful number, since it uses less digits than its factorization.

669773104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 669773104 is about 25879.9749613480. The cubic root of 669773104 is about 874.9352241572.

The spelling of 669773104 in words is "six hundred sixty-nine million, seven hundred seventy-three thousand, one hundred four".