266985229188 has 24 divisors (see below), whose sum is σ = 643061198080. Its totient is φ = 86124267360.

The previous prime is 266985229163. The next prime is 266985229207. The reversal of 266985229188 is 881922589662.

It is a happy number.

266985229188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×266985229188² (a number of 24 digits) contains 22 as substring.

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, 358850743 + ... + 358851486.

Almost surely, 2^266985229188 is an apocalyptic number.

It is an amenable number.

266985229188 is an abundant number, since it is smaller than the sum of its proper divisors (376075968892).

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

266985229188 is a wasteful number, since it uses less digits than its factorization.

266985229188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717702267 (or 717702265 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 66.

The spelling of 266985229188 in words is "two hundred sixty-six billion, nine hundred eighty-five million, two hundred twenty-nine thousand, one hundred eighty-eight".