266120063253 has 32 divisors (see below), whose sum is σ = 430498145280. Its totient is φ = 161132969520.

The previous prime is 266120063249. The next prime is 266120063311. The reversal of 266120063253 is 352360021662.

266120063253 is a `hidden beast` number, since 2 + 6 + 6 + 12 + 0 + 0 + 632 + 5 + 3 = 666.

It is not a de Polignac number, because 266120063253 - 2² = 266120063249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266120063243) 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, 105751 + ... + 737172.

It is an arithmetic number, because the mean of its divisors is an integer number (13453067040).

Almost surely, 2^266120063253 is an apocalyptic number.

It is an amenable number.

266120063253 is a deficient number, since it is larger than the sum of its proper divisors (164378082027).

266120063253 is a wasteful number, since it uses less digits than its factorization.

266120063253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844006 (or 844000 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 266120063253 in words is "two hundred sixty-six billion, one hundred twenty million, sixty-three thousand, two hundred fifty-three".