666333360 has 720 divisors, whose sum is σ = 3036582432. Its totient is φ = 129024000.

The previous prime is 666333359. The next prime is 666333383. The reversal of 666333360 is 63333666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6597310 + ... + 6597410.

Almost surely, 2^666333360 is an apocalyptic number.

666333360 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 666333360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1518291216).

666333360 is an abundant number, since it is smaller than the sum of its proper divisors (2370249072).

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

666333360 is a wasteful number, since it uses less digits than its factorization.

666333360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 36.

The square root of 666333360 is about 25813.4337119260. The cubic root of 666333360 is about 873.4348553709.

It can be divided in two parts, 6 and 66333360, that added together give a palindrome (66333366).

The spelling of 666333360 in words is "six hundred sixty-six million, three hundred thirty-three thousand, three hundred sixty".