266682801348 has 18 divisors (see below), whose sum is σ = 674114859054. Its totient is φ = 88894267104.

The previous prime is 266682801331. The next prime is 266682801349. The reversal of 266682801348 is 843108286662.

It can be written as a sum of positive squares in only one way, i.e., 207482072004 + 59200729344 = 455502^2 + 243312^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×266682801348² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266682801294 and 266682801303.

It is not an unprimeable number, because it can be changed into a prime (266682801349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3703927761 + ... + 3703927832.

It is an arithmetic number, because the mean of its divisors is an integer number (37450825503).

Almost surely, 2^266682801348 is an apocalyptic number.

It is an amenable number.

266682801348 is an abundant number, since it is smaller than the sum of its proper divisors (407432057706).

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

266682801348 is a wasteful number, since it uses less digits than its factorization.

266682801348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407855603 (or 7407855598 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 266682801348 in words is "two hundred sixty-six billion, six hundred eighty-two million, eight hundred one thousand, three hundred forty-eight".