266123730130 has 16 divisors (see below), whose sum is σ = 479031822360. Its totient is φ = 106447468032.

The previous prime is 266123730107. The next prime is 266123730137. The reversal of 266123730130 is 31037321662.

It can be written as a sum of positive squares in 4 ways, for example, as 266118761689 + 4968441 = 515867^2 + 2229^2 .

It is not an unprimeable number, because it can be changed into a prime (266123730137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372976 + ... + 819364.

Almost surely, 2^266123730130 is an apocalyptic number.

266123730130 is a deficient number, since it is larger than the sum of its proper divisors (212908092230).

266123730130 is a wasteful number, since it uses less digits than its factorization.

266123730130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506013.

The product of its (nonzero) digits is 27216, while the sum is 34.

The spelling of 266123730130 in words is "two hundred sixty-six billion, one hundred twenty-three million, seven hundred thirty thousand, one hundred thirty".