266061162165345 has 96 divisors (see below), whose sum is σ = 491367391482240. Its totient is φ = 138011191372800.

The previous prime is 266061162165317. The next prime is 266061162165349. The reversal of 266061162165345 is 543561261160662.

266061162165345 is a `hidden beast` number, since 2 + 6 + 6 + 0 + 6 + 1 + 1 + 621 + 6 + 5 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 266061162165345 - 2⁵ = 266061162165313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266061162165291 and 266061162165300.

It is not an unprimeable number, because it can be changed into a prime (266061162165349) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 116153370 + ... + 118421820.

It is an arithmetic number, because the mean of its divisors is an integer number (5118410327940).

Almost surely, 2^{266061162165345} is an apocalyptic number.

It is an amenable number.

266061162165345 is a deficient number, since it is larger than the sum of its proper divisors (225306229316895).

266061162165345 is a wasteful number, since it uses less digits than its factorization.

266061162165345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271117 (or 2271105 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 266061162165345 in words is "two hundred sixty-six trillion, sixty-one billion, one hundred sixty-two million, one hundred sixty-five thousand, three hundred forty-five".