266040099 has 32 divisors (see below), whose sum is σ = 426404160. Its totient is φ = 162964224.

The previous prime is 266040091. The next prime is 266040121. The reversal of 266040099 is 990040662.

It is not a de Polignac number, because 266040099 - 2³ = 266040091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (266040091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80157 + ... + 83409.

It is an arithmetic number, because the mean of its divisors is an integer number (13325130).

Almost surely, 2^266040099 is an apocalyptic number.

266040099 is a deficient number, since it is larger than the sum of its proper divisors (160364061).

266040099 is a wasteful number, since it uses less digits than its factorization.

266040099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508 (or 3502 counting only the distinct ones).

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

The square root of 266040099 is about 16310.7356976931. The cubic root of 266040099 is about 643.1550740299.

The spelling of 266040099 in words is "two hundred sixty-six million, forty thousand, ninety-nine".