266210047 has 2 divisors, whose sum is σ = 266210048. Its totient is φ = 266210046.

The previous prime is 266210017. The next prime is 266210101. The reversal of 266210047 is 740012662.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266210047 is a prime.

It is equal to p_14516416 and since 266210047 and 14516416 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 266209997 and 266210024.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266210017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133105023 + 133105024.

It is an arithmetic number, because the mean of its divisors is an integer number (133105024).

Almost surely, 2^266210047 is an apocalyptic number.

266210047 is a deficient number, since it is larger than the sum of its proper divisors (1).

266210047 is an equidigital number, since it uses as much as digits as its factorization.

266210047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 266210047 is about 16315.9445635244. The cubic root of 266210047 is about 643.2919953095.

The spelling of 266210047 in words is "two hundred sixty-six million, two hundred ten thousand, forty-seven".