266046636 has 12 divisors (see below), whose sum is σ = 620775512. Its totient is φ = 88682208.

The previous prime is 266046629. The next prime is 266046661. The reversal of 266046636 is 636640662.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 266046594 and 266046603.

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 in 3 ways as a sum of consecutive naturals, for example, 11085265 + ... + 11085288.

Almost surely, 2^266046636 is an apocalyptic number.

It is an amenable number.

266046636 is an abundant number, since it is smaller than the sum of its proper divisors (354728876).

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

266046636 is a wasteful number, since it uses less digits than its factorization.

266046636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22170560 (or 22170558 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 39.

The square root of 266046636 is about 16310.9360859517. The cubic root of 266046636 is about 643.1603417449.

The spelling of 266046636 in words is "two hundred sixty-six million, forty-six thousand, six hundred thirty-six".