4066026660 has 96 divisors (see below), whose sum is σ = 12806169600. Its totient is φ = 1084262112.

The previous prime is 4066026649. The next prime is 4066026667. The reversal of 4066026660 is 666206604.

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

It is not an unprimeable number, because it can be changed into a prime (4066026667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2740 + ... + 90219.

It is an arithmetic number, because the mean of its divisors is an integer number (133397600).

Almost surely, 2^4066026660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4066026660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6403084800).

4066026660 is an abundant number, since it is smaller than the sum of its proper divisors (8740142940).

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

4066026660 is an equidigital number, since it uses as much as digits as its factorization.

4066026660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92989 (or 92969 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 4066026660 is about 63765.4033155911. The cubic root of 4066026660 is about 1596.0876626619.

The spelling of 4066026660 in words is "four billion, sixty-six million, twenty-six thousand, six hundred sixty".