266580146596 has 9 divisors (see below), whose sum is σ = 466517063649. Its totient is φ = 133289556984.

The previous prime is 266580146593. The next prime is 266580146681. The reversal of 266580146596 is 695641085662.

The square root of 266580146596 is 516314.

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., 88381344100 + 178198802496 = 297290^2 + 422136^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 266580146596.

It is not an unprimeable number, because it can be changed into a prime (266580146593) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 903550 + ... + 1161706.

Almost surely, 2^266580146596 is an apocalyptic number.

266580146596 is the 516314-th square number.

It is an amenable number.

266580146596 is a deficient number, since it is larger than the sum of its proper divisors (199936917053).

266580146596 is an frugal number, since it uses more digits than its factorization.

266580146596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516318 (or 258159 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 266580146596 in words is "two hundred sixty-six billion, five hundred eighty million, one hundred forty-six thousand, five hundred ninety-six".