660434016 has 96 divisors (see below), whose sum is σ = 1942472448. Its totient is φ = 194711040.

The previous prime is 660433997. The next prime is 660434077. The reversal of 660434016 is 610434066.

660434016 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 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, 30621 + ... + 47523.

It is an arithmetic number, because the mean of its divisors is an integer number (20234088).

Almost surely, 2^660434016 is an apocalyptic number.

660434016 is a gapful number since it is divisible by the number (66) 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 660434016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971236224).

660434016 is an abundant number, since it is smaller than the sum of its proper divisors (1282038432).

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

660434016 is a wasteful number, since it uses less digits than its factorization.

660434016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16964 (or 16956 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 660434016 is about 25698.9107940395. The cubic root of 660434016 is about 870.8495757009.

The spelling of 660434016 in words is "six hundred sixty million, four hundred thirty-four thousand, sixteen".