668880096 has 72 divisors (see below), whose sum is σ = 1865246040. Its totient is φ = 209836032.

The previous prime is 668880083. The next prime is 668880101. The reversal of 668880096 is 690088866.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15690 + ... + 39798.

It is an arithmetic number, because the mean of its divisors is an integer number (25906195).

Almost surely, 2^668880096 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 668880096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (932623020).

668880096 is an abundant number, since it is smaller than the sum of its proper divisors (1196365944).

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

668880096 is a wasteful number, since it uses less digits than its factorization.

668880096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24156 (or 24131 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 668880096 is about 25862.7163306564. The cubic root of 668880096 is about 874.5462010419.

The spelling of 668880096 in words is "six hundred sixty-eight million, eight hundred eighty thousand, ninety-six".