266351808720396 has 48 divisors (see below), whose sum is σ = 710272672825856. Its totient is φ = 76100390037504.

The previous prime is 266351808720383. The next prime is 266351808720451. The reversal of 266351808720396 is 693027808153662.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55733625 + ... + 60323631.

Almost surely, 2^{266351808720396} is an apocalyptic number.

It is an amenable number.

266351808720396 is an abundant number, since it is smaller than the sum of its proper divisors (443920864105460).

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

266351808720396 is a wasteful number, since it uses less digits than its factorization.

266351808720396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280838 (or 5280836 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 66.

The spelling of 266351808720396 in words is "two hundred sixty-six trillion, three hundred fifty-one billion, eight hundred eight million, seven hundred twenty thousand, three hundred ninety-six".