266143414 has 4 divisors (see below), whose sum is σ = 399215124. Its totient is φ = 133071706.

The previous prime is 266143379. The next prime is 266143421. The reversal of 266143414 is 414341662.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 66535852 + ... + 66535855.

It is an arithmetic number, because the mean of its divisors is an integer number (99803781).

Almost surely, 2^266143414 is an apocalyptic number.

266143414 is a deficient number, since it is larger than the sum of its proper divisors (133071710).

266143414 is a wasteful number, since it uses less digits than its factorization.

266143414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133071709.

The product of its digits is 13824, while the sum is 31.

The square root of 266143414 is about 16313.9024761091. The cubic root of 266143414 is about 643.2383183316.

The spelling of 266143414 in words is "two hundred sixty-six million, one hundred forty-three thousand, four hundred fourteen".