266687228568 has 32 divisors (see below), whose sum is σ = 666948386160. Its totient is φ = 88865034240.

The previous prime is 266687228531. The next prime is 266687228597. The reversal of 266687228568 is 865822786662.

266687228568 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×266687228568² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266687228499 and 266687228508.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1848313 + ... + 1987368.

Almost surely, 2^266687228568 is an apocalyptic number.

It is an amenable number.

266687228568 is an abundant number, since it is smaller than the sum of its proper divisors (400261157592).

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

266687228568 is a wasteful number, since it uses less digits than its factorization.

266687228568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838587 (or 3838583 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 66.

The spelling of 266687228568 in words is "two hundred sixty-six billion, six hundred eighty-seven million, two hundred twenty-eight thousand, five hundred sixty-eight".