266681628296 has 16 divisors (see below), whose sum is σ = 500033571840. Its totient is φ = 133339342480.

The previous prime is 266681628281. The next prime is 266681628299. The reversal of 266681628296 is 692826186662.

It is a super-2 number, since 2×266681628296² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266681628299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188545 + ... + 1394991.

It is an arithmetic number, because the mean of its divisors is an integer number (31252098240).

Almost surely, 2^266681628296 is an apocalyptic number.

It is an amenable number.

266681628296 is a deficient number, since it is larger than the sum of its proper divisors (233351943544).

266681628296 is a wasteful number, since it uses less digits than its factorization.

266681628296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367924 (or 367920 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 62.

The spelling of 266681628296 in words is "two hundred sixty-six billion, six hundred eighty-one million, six hundred twenty-eight thousand, two hundred ninety-six".