8279630145666 has 64 divisors (see below), whose sum is σ = 20079764697600. Its totient is φ = 2507987077200.

The previous prime is 8279630145623. The next prime is 8279630145719. The reversal of 8279630145666 is 6665410369728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1250196 + ... + 4257023.

It is an arithmetic number, because the mean of its divisors is an integer number (313746323400).

It is a 1-persistent number, because it is pandigital, but 2⋅8279630145666 = 16559260291332 is not.

Almost surely, 2^{8279630145666} is an apocalyptic number.

8279630145666 is an abundant number, since it is smaller than the sum of its proper divisors (11800134551934).

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

8279630145666 is a wasteful number, since it uses less digits than its factorization.

8279630145666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5509772 (or 5509766 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 63.

The spelling of 8279630145666 in words is "eight trillion, two hundred seventy-nine billion, six hundred thirty million, one hundred forty-five thousand, six hundred sixty-six".