266898056 has 8 divisors (see below), whose sum is σ = 500433870. Its totient is φ = 133449024.

The previous prime is 266898053. The next prime is 266898061. The reversal of 266898056 is 650898662.

It can be written as a sum of positive squares in only one way, i.e., 133864900 + 133033156 = 11570^2 + 11534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 266897995 and 266898013.

It is not an unprimeable number, because it can be changed into a prime (266898053) by changing a digit.

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 as a sum of consecutive naturals, namely, 16681121 + ... + 16681136.

Almost surely, 2^266898056 is an apocalyptic number.

It is an amenable number.

266898056 is a deficient number, since it is larger than the sum of its proper divisors (233535814).

266898056 is a wasteful number, since it uses less digits than its factorization.

266898056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33362263 (or 33362259 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 266898056 is about 16337.0149048105. The cubic root of 266898056 is about 643.8457058701.

The spelling of 266898056 in words is "two hundred sixty-six million, eight hundred ninety-eight thousand, fifty-six".