266650431511232 has 28 divisors (see below), whose sum is σ = 533988894539760. Its totient is φ = 132102048635136.

The previous prime is 266650431511231. The next prime is 266650431511241. The reversal of 266650431511232 is 232115134056662.

It is a super-2 number, since 2×266650431511232² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266650431511231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19111979228 + ... + 19111993179.

Almost surely, 2^{266650431511232} is an apocalyptic number.

It is an amenable number.

266650431511232 is an abundant number, since it is smaller than the sum of its proper divisors (267338463028528).

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

266650431511232 is a wasteful number, since it uses less digits than its factorization.

266650431511232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38223972528 (or 38223972518 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

Adding to 266650431511232 its reverse (232115134056662), we get a palindrome (498765565567894).

The spelling of 266650431511232 in words is "two hundred sixty-six trillion, six hundred fifty billion, four hundred thirty-one million, five hundred eleven thousand, two hundred thirty-two".