666601060 has 24 divisors (see below), whose sum is σ = 1445020416. Its totient is φ = 258038880.

The previous prime is 666601021. The next prime is 666601063. The reversal of 666601060 is 60106666.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (666601063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536962 + ... + 538201.

It is an arithmetic number, because the mean of its divisors is an integer number (60209184).

Almost surely, 2^666601060 is an apocalyptic number.

It is an amenable number.

666601060 is an abundant number, since it is smaller than the sum of its proper divisors (778419356).

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

666601060 is a wasteful number, since it uses less digits than its factorization.

666601060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075203 (or 1075201 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 666601060 is about 25818.6184758209. The cubic root of 666601060 is about 873.5518074450.

The spelling of 666601060 in words is "six hundred sixty-six million, six hundred one thousand, sixty".