266676963 has 12 divisors (see below), whose sum is σ = 413621640. Its totient is φ = 152386752.

The previous prime is 266676947. The next prime is 266676967. The reversal of 266676963 is 369676662.

It is not a de Polignac number, because 266676963 - 2⁴ = 266676947 is a prime.

It is a super-2 number, since 2×266676963² = 142233205189806738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266676967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 906918 + ... + 907211.

It is an arithmetic number, because the mean of its divisors is an integer number (34468470).

Almost surely, 2^266676963 is an apocalyptic number.

266676963 is a deficient number, since it is larger than the sum of its proper divisors (146944677).

266676963 is a wasteful number, since it uses less digits than its factorization.

266676963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814146 (or 1814139 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 51.

The square root of 266676963 is about 16330.2468750475. The cubic root of 266676963 is about 643.6678737976.

The spelling of 266676963 in words is "two hundred sixty-six million, six hundred seventy-six thousand, nine hundred sixty-three".