266868153803 has 2 divisors, whose sum is σ = 266868153804. Its totient is φ = 266868153802.

The previous prime is 266868153779. The next prime is 266868153901. The reversal of 266868153803 is 308351868662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 266868153803 - 2¹⁰ = 266868152779 is a prime.

It is a super-2 number, since 2×266868153803² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (266865153803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133434076901 + 133434076902.

It is an arithmetic number, because the mean of its divisors is an integer number (133434076902).

Almost surely, 2^266868153803 is an apocalyptic number.

266868153803 is a deficient number, since it is larger than the sum of its proper divisors (1).

266868153803 is an equidigital number, since it uses as much as digits as its factorization.

266868153803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 266868153803 in words is "two hundred sixty-six billion, eight hundred sixty-eight million, one hundred fifty-three thousand, eight hundred three".