266686312048 has 40 divisors (see below), whose sum is σ = 559667803968. Its totient is φ = 122374493952.

The previous prime is 266686312043. The next prime is 266686312049. The reversal of 266686312048 is 840213686662.

It is a super-2 number, since 2×266686312048² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 266686311986 and 266686312004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266686312043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3669640 + ... + 3741607.

Almost surely, 2^266686312048 is an apocalyptic number.

It is an amenable number.

266686312048 is an abundant number, since it is smaller than the sum of its proper divisors (292981491920).

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

266686312048 is a wasteful number, since it uses less digits than its factorization.

266686312048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411441 (or 7411435 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 52.

The spelling of 266686312048 in words is "two hundred sixty-six billion, six hundred eighty-six million, three hundred twelve thousand, forty-eight".