266848697476 has 27 divisors (see below), whose sum is σ = 469908801957. Its totient is φ = 132594214320.

The previous prime is 266848697473. The next prime is 266848697503. The reversal of 266848697476 is 674796848662.

It is a happy number.

The square root of 266848697476 is 516574.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2940459076 + 263908238400 = 54226^2 + 513720^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266848697399 and 266848697408.

It is not an unprimeable number, because it can be changed into a prime (266848697473) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 186999075 + ... + 187000501.

Almost surely, 2^266848697476 is an apocalyptic number.

266848697476 is the 516574-th square number.

It is an amenable number.

266848697476 is a deficient number, since it is larger than the sum of its proper divisors (203060104481).

266848697476 is an frugal number, since it uses more digits than its factorization.

266848697476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220 (or 1610 counting only the distinct ones).

The product of its digits is 1170505728, while the sum is 73.

It can be divided in two parts, 266848 and 697476, that added together give a square (964324 = 982²).

The spelling of 266848697476 in words is "two hundred sixty-six billion, eight hundred forty-eight million, six hundred ninety-seven thousand, four hundred seventy-six".