669046800 has 120 divisors (see below), whose sum is σ = 2164387264. Its totient is φ = 176647680.

The previous prime is 669046799. The next prime is 669046817. The reversal of 669046800 is 8640966.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120894 + ... + 126306.

Almost surely, 2^669046800 is an apocalyptic number.

669046800 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669046800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082193632).

669046800 is an abundant number, since it is smaller than the sum of its proper divisors (1495340464).

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

669046800 is a wasteful number, since it uses less digits than its factorization.

669046800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537 (or 5526 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 669046800 is about 25865.9389932011. The cubic root of 669046800 is about 874.6188489602.

The spelling of 669046800 in words is "six hundred sixty-nine million, forty-six thousand, eight hundred".