266253812372 has 12 divisors (see below), whose sum is σ = 465953093760. Its totient is φ = 133124357016.

The previous prime is 266253812369. The next prime is 266253812381. The reversal of 266253812372 is 273218352662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391778 + ... + 828249.

It is an arithmetic number, because the mean of its divisors is an integer number (38829424480).

Almost surely, 2^266253812372 is an apocalyptic number.

It is an amenable number.

266253812372 is a deficient number, since it is larger than the sum of its proper divisors (199699281388).

266253812372 is a wasteful number, since it uses less digits than its factorization.

266253812372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274590 (or 1274588 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 47.

The spelling of 266253812372 in words is "two hundred sixty-six billion, two hundred fifty-three million, eight hundred twelve thousand, three hundred seventy-two".