8259880309966 has 16 divisors (see below), whose sum is σ = 12559649943168. Its totient is φ = 4073331283200.

The previous prime is 8259880309963. The next prime is 8259880309997. The reversal of 8259880309966 is 6699030889528.

It is a Harshad number since it is a multiple of its sum of digits (73).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8259880309963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32066326 + ... + 32322886.

It is an arithmetic number, because the mean of its divisors is an integer number (784978121448).

Almost surely, 2^{8259880309966} is an apocalyptic number.

8259880309966 is a deficient number, since it is larger than the sum of its proper divisors (4299769633202).

8259880309966 is a wasteful number, since it uses less digits than its factorization.

8259880309966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477147.

The product of its (nonzero) digits is 403107840, while the sum is 73.

The spelling of 8259880309966 in words is "eight trillion, two hundred fifty-nine billion, eight hundred eighty million, three hundred nine thousand, nine hundred sixty-six".