266299048656 has 100 divisors (see below), whose sum is σ = 785289299652. Its totient is φ = 87091490304.

The previous prime is 266299048643. The next prime is 266299048711. The reversal of 266299048656 is 656840992662.

266299048656 is a `hidden beast` number, since 2 + 6 + 62 + 9 + 90 + 486 + 5 + 6 = 666.

266299048656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 158244840000 + 108054208656 = 397800^2 + 328716^2 .

It is a junction number, because it is equal to n+sod(n) for n = 266299048593 and 266299048602.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 1869781 + ... + 2007156.

Almost surely, 2^266299048656 is an apocalyptic number.

It is an amenable number.

266299048656 is an abundant number, since it is smaller than the sum of its proper divisors (518990250996).

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

266299048656 is a wasteful number, since it uses less digits than its factorization.

266299048656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877010 (or 3876995 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 63.

The spelling of 266299048656 in words is "two hundred sixty-six billion, two hundred ninety-nine million, forty-eight thousand, six hundred fifty-six".