266231054651212 has 12 divisors (see below), whose sum is σ = 532462109302480. Its totient is φ = 114099023421936.

The previous prime is 266231054651203. The next prime is 266231054651213. The reversal of 266231054651212 is 212156450132662.

266231054651212 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (266231054651213) 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, 4754125975887 + ... + 4754125975942.

Almost surely, 2^{266231054651212} is an apocalyptic number.

It is an amenable number.

266231054651212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

266231054651212 is a wasteful number, since it uses less digits than its factorization.

266231054651212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9508251951840 (or 9508251951838 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 266231054651212 in words is "two hundred sixty-six trillion, two hundred thirty-one billion, fifty-four million, six hundred fifty-one thousand, two hundred twelve".