266226646242 has 32 divisors (see below), whose sum is σ = 541585857600. Its totient is φ = 87220721088.

The previous prime is 266226646241. The next prime is 266226646267. The reversal of 266226646242 is 242646622662.

It is a junction number, because it is equal to n+sod(n) for n = 266226646191 and 266226646200.

It is not an unprimeable number, because it can be changed into a prime (266226646241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1767384 + ... + 1912092.

It is an arithmetic number, because the mean of its divisors is an integer number (16924558050).

Almost surely, 2^266226646242 is an apocalyptic number.

266226646242 is an abundant number, since it is smaller than the sum of its proper divisors (275359211358).

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

266226646242 is a wasteful number, since it uses less digits than its factorization.

266226646242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149970.

The product of its digits is 3981312, while the sum is 48.

The spelling of 266226646242 in words is "two hundred sixty-six billion, two hundred twenty-six million, six hundred forty-six thousand, two hundred forty-two".