266554432045226 has 16 divisors (see below), whose sum is σ = 436486393468104. Its totient is φ = 121339846831104.

The previous prime is 266554432045217. The next prime is 266554432045229. The reversal of 266554432045226 is 622540234455662.

It can be written as a sum of positive squares in 4 ways, for example, as 217695240741001 + 48859191304225 = 14754499^2 + 6989935^2 .

It is not an unprimeable number, because it can be changed into a prime (266554432045229) 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, 70219816871 + ... + 70219820666.

Almost surely, 2^{266554432045226} is an apocalyptic number.

266554432045226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

266554432045226 is a deficient number, since it is larger than the sum of its proper divisors (169931961422878).

266554432045226 is a wasteful number, since it uses less digits than its factorization.

266554432045226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140439637625.

The product of its (nonzero) digits is 82944000, while the sum is 56.

The spelling of 266554432045226 in words is "two hundred sixty-six trillion, five hundred fifty-four billion, four hundred thirty-two million, forty-five thousand, two hundred twenty-six".