266739423606 has 12 divisors (see below), whose sum is σ = 577935417852. Its totient is φ = 88913141196.

The previous prime is 266739423583. The next prime is 266739423653. The reversal of 266739423606 is 606324937662.

266739423606 is a `hidden beast` number, since 2 + 6 + 6 + 7 + 3 + 9 + 4 + 23 + 606 = 666.

It is a super-2 number, since 2×266739423606² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7409428416 + ... + 7409428451.

It is an arithmetic number, because the mean of its divisors is an integer number (48161284821).

Almost surely, 2^266739423606 is an apocalyptic number.

266739423606 is an abundant number, since it is smaller than the sum of its proper divisors (311195994246).

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

266739423606 is a wasteful number, since it uses less digits than its factorization.

266739423606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14818856875 (or 14818856872 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 54.

The spelling of 266739423606 in words is "two hundred sixty-six billion, seven hundred thirty-nine million, four hundred twenty-three thousand, six hundred six".