266426401250 has 40 divisors (see below), whose sum is σ = 528765550236. Its totient is φ = 100301696000.

The previous prime is 266426401231. The next prime is 266426401253. The reversal of 266426401250 is 52104624662.

It can be written as a sum of positive squares in 10 ways, for example, as 24345672961 + 242080728289 = 156031^2 + 492017^2 .

It is not an unprimeable number, because it can be changed into a prime (266426401253) 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 in 19 ways as a sum of consecutive naturals, for example, 6247607 + ... + 6290106.

Almost surely, 2^266426401250 is an apocalyptic number.

266426401250 is a deficient number, since it is larger than the sum of its proper divisors (262339148986).

266426401250 is a wasteful number, since it uses less digits than its factorization.

266426401250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12537752 (or 12537737 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 266426401250 in words is "two hundred sixty-six billion, four hundred twenty-six million, four hundred one thousand, two hundred fifty".