666675760 has 20 divisors (see below), whose sum is σ = 1550021328. Its totient is φ = 266670272.

The previous prime is 666675727. The next prime is 666675761. The reversal of 666675760 is 67576666.

666675760 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 (20).

It is not an unprimeable number, because it can be changed into a prime (666675761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4166644 + ... + 4166803.

Almost surely, 2^666675760 is an apocalyptic number.

It is an amenable number.

666675760 is an abundant number, since it is smaller than the sum of its proper divisors (883345568).

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

666675760 is a wasteful number, since it uses less digits than its factorization.

666675760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8333460 (or 8333454 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 49.

The square root of 666675760 is about 25820.0650657585. The cubic root of 666675760 is about 873.5844365974.

It can be divided in two parts, 66667 and 5760, that added together give a palindrome (72427).

The spelling of 666675760 in words is "six hundred sixty-six million, six hundred seventy-five thousand, seven hundred sixty".