206971266 has 16 divisors (see below), whose sum is σ = 425130624. Its totient is φ = 67125744.

The previous prime is 206971249. The next prime is 206971267. The reversal of 206971266 is 662179602.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206971267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465930 + ... + 466373.

It is an arithmetic number, because the mean of its divisors is an integer number (26570664).

Almost surely, 2^206971266 is an apocalyptic number.

206971266 is an abundant number, since it is smaller than the sum of its proper divisors (218159358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206971266 is a wasteful number, since it uses less digits than its factorization.

206971266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932345.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 206971266 is about 14386.4959597534. The cubic root of 206971266 is about 591.5207974553.

The spelling of 206971266 in words is "two hundred six million, nine hundred seventy-one thousand, two hundred sixty-six".