266820275214 has 48 divisors (see below), whose sum is σ = 592397245440. Its totient is φ = 86765162640.

The previous prime is 266820275191. The next prime is 266820275261. The reversal of 266820275214 is 412572028662.

266820275214 is a `hidden beast` number, since 26 + 6 + 82 + 0 + 27 + 521 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 266820275214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 819822 + ... + 1098065.

It is an arithmetic number, because the mean of its divisors is an integer number (12341609280).

Almost surely, 2^266820275214 is an apocalyptic number.

266820275214 is an abundant number, since it is smaller than the sum of its proper divisors (325576970226).

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

266820275214 is a wasteful number, since it uses less digits than its factorization.

266820275214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918085 (or 1918082 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 266820275214 in words is "two hundred sixty-six billion, eight hundred twenty million, two hundred seventy-five thousand, two hundred fourteen".