666026489828 has 12 divisors (see below), whose sum is σ = 1332052979712. Its totient is φ = 285439924200.

The previous prime is 666026489773. The next prime is 666026489831. The reversal of 666026489828 is 828984620666.

666026489828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

666026489828 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11893330148 + ... + 11893330203.

It is an arithmetic number, because the mean of its divisors is an integer number (111004414976).

Almost surely, 2^666026489828 is an apocalyptic number.

It is an amenable number.

666026489828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

666026489828 is a wasteful number, since it uses less digits than its factorization.

666026489828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23786660362 (or 23786660360 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 65.

The spelling of 666026489828 in words is "six hundred sixty-six billion, twenty-six million, four hundred eighty-nine thousand, eight hundred twenty-eight".