266189952323 has 2 divisors, whose sum is σ = 266189952324. Its totient is φ = 266189952322.

The previous prime is 266189952283. The next prime is 266189952337. The reversal of 266189952323 is 323259981662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266189952323 is a prime.

It is not a weakly prime, because it can be changed into another prime (266189952023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133094976161 + 133094976162.

It is an arithmetic number, because the mean of its divisors is an integer number (133094976162).

Almost surely, 2^266189952323 is an apocalyptic number.

266189952323 is a deficient number, since it is larger than the sum of its proper divisors (1).

266189952323 is an equidigital number, since it uses as much as digits as its factorization.

266189952323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 56.

The spelling of 266189952323 in words is "two hundred sixty-six billion, one hundred eighty-nine million, nine hundred fifty-two thousand, three hundred twenty-three".