266536136 has 32 divisors (see below), whose sum is σ = 504627840. Its totient is φ = 131976768.

The previous prime is 266536111. The next prime is 266536141. The reversal of 266536136 is 631635662.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 266536136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575441 + ... + 575903.

It is an arithmetic number, because the mean of its divisors is an integer number (15769620).

Almost surely, 2^266536136 is an apocalyptic number.

It is an amenable number.

266536136 is a deficient number, since it is larger than the sum of its proper divisors (238091704).

266536136 is a wasteful number, since it uses less digits than its factorization.

266536136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 1009 counting only the distinct ones).

The product of its digits is 116640, while the sum is 38.

The square root of 266536136 is about 16325.9344602384. The cubic root of 266536136 is about 643.5545509526.

The spelling of 266536136 in words is "two hundred sixty-six million, five hundred thirty-six thousand, one hundred thirty-six".