665466060 has 144 divisors (see below), whose sum is σ = 2183328000. Its totient is φ = 150998400.

The previous prime is 665466049. The next prime is 665466101. The reversal of 665466060 is 60664566.

665466060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×665466060³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 443191 + ... + 444689.

It is an arithmetic number, because the mean of its divisors is an integer number (15162000).

Almost surely, 2^665466060 is an apocalyptic number.

665466060 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 665466060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1091664000).

665466060 is an abundant number, since it is smaller than the sum of its proper divisors (1517861940).

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

665466060 is a wasteful number, since it uses less digits than its factorization.

665466060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 665466060 is about 25796.6288495222. The cubic root of 665466060 is about 873.0557363490.

The spelling of 665466060 in words is "six hundred sixty-five million, four hundred sixty-six thousand, sixty".