669168480 has 96 divisors (see below), whose sum is σ = 2175925248. Its totient is φ = 172684800.

The previous prime is 669168427. The next prime is 669168491. The reversal of 669168480 is 84861966.

669168480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7606 + ... + 37365.

It is an arithmetic number, because the mean of its divisors is an integer number (22665888).

Almost surely, 2^669168480 is an apocalyptic number.

669168480 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 669168480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087962624).

669168480 is an abundant number, since it is smaller than the sum of its proper divisors (1506756768).

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

669168480 is a wasteful number, since it uses less digits than its factorization.

669168480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45020 (or 45012 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 669168480 is about 25868.2910142901. The cubic root of 669168480 is about 874.6718682560.

The spelling of 669168480 in words is "six hundred sixty-nine million, one hundred sixty-eight thousand, four hundred eighty".