7166867488856 has 8 divisors (see below), whose sum is σ = 13437876541620. Its totient is φ = 3583433744424.

The previous prime is 7166867488843. The next prime is 7166867488861. The reversal of 7166867488856 is 6588847686617.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×7166867488856² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447929218046 + ... + 447929218061.

Almost surely, 2^{7166867488856} is an apocalyptic number.

It is an amenable number.

7166867488856 is a deficient number, since it is larger than the sum of its proper divisors (6271009052764).

7166867488856 is a wasteful number, since it uses less digits than its factorization.

7166867488856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895858436113 (or 895858436109 counting only the distinct ones).

The product of its digits is 5202247680, while the sum is 80.

The spelling of 7166867488856 in words is "seven trillion, one hundred sixty-six billion, eight hundred sixty-seven million, four hundred eighty-eight thousand, eight hundred fifty-six".