266645242546662 has 64 divisors (see below), whose sum is σ = 614048068892160. Its totient is φ = 75613038057216.

The previous prime is 266645242546649. The next prime is 266645242546663.

266645242546662 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 266645242546593 and 266645242546602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266645242546663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12002688 + ... + 26026044.

It is an arithmetic number, because the mean of its divisors is an integer number (9594501076440).

Almost surely, 2^{266645242546662} is an apocalyptic number.

266645242546662 is an abundant number, since it is smaller than the sum of its proper divisors (347402826345498).

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

266645242546662 is a wasteful number, since it uses less digits than its factorization.

266645242546662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14026765.

The product of its digits is 1194393600, while the sum is 66.

The spelling of 266645242546662 in words is "two hundred sixty-six trillion, six hundred forty-five billion, two hundred forty-two million, five hundred forty-six thousand, six hundred sixty-two".