266961006 has 24 divisors (see below), whose sum is σ = 622909560. Its totient is φ = 82141776.

The previous prime is 266960999. The next prime is 266961007. The reversal of 266961006 is 600169662.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266961007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570196 + ... + 570663.

It is an arithmetic number, because the mean of its divisors is an integer number (25954565).

Almost surely, 2^266961006 is an apocalyptic number.

266961006 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

266961006 is an abundant number, since it is smaller than the sum of its proper divisors (355948554).

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

266961006 is a wasteful number, since it uses less digits than its factorization.

266961006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140880 (or 1140877 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 266961006 is about 16338.9413977773. The cubic root of 266961006 is about 643.8963205776.

The spelling of 266961006 in words is "two hundred sixty-six million, nine hundred sixty-one thousand, six".