266655163473 has 12 divisors (see below), whose sum is σ = 398450244660. Its totient is φ = 171640105056.

The previous prime is 266655163451. The next prime is 266655163483. The reversal of 266655163473 is 374361556662.

266655163473 is digitally balanced in base 2, 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 222870856464 + 43784307009 = 472092^2 + 209247^2 .

It is not a de Polignac number, because 266655163473 - 2¹² = 266655159377 is a prime.

It is a super-2 number, since 2×266655163473² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (266655163483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510833386 + ... + 510833907.

It is an arithmetic number, because the mean of its divisors is an integer number (33204187055).

Almost surely, 2^266655163473 is an apocalyptic number.

It is an amenable number.

266655163473 is a deficient number, since it is larger than the sum of its proper divisors (131795081187).

266655163473 is a wasteful number, since it uses less digits than its factorization.

266655163473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021667328 (or 1021667325 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 54.

It can be divided in two parts, 266655 and 163473, that added together give a triangular number (430128 = T₉₂₇).

The spelling of 266655163473 in words is "two hundred sixty-six billion, six hundred fifty-five million, one hundred sixty-three thousand, four hundred seventy-three".