266613634305345 has 32 divisors (see below), whose sum is σ = 435662210193408. Its totient is φ = 139167198007488.

The previous prime is 266613634305323. The next prime is 266613634305383. The reversal of 266613634305345 is 543503436316662.

It is not a de Polignac number, because 266613634305345 - 2⁸ = 266613634305089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73831602 + ... + 77358468.

It is an arithmetic number, because the mean of its divisors is an integer number (13614444068544).

Almost surely, 2^{266613634305345} is an apocalyptic number.

It is an amenable number.

266613634305345 is a deficient number, since it is larger than the sum of its proper divisors (169048575888063).

266613634305345 is a wasteful number, since it uses less digits than its factorization.

266613634305345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634149.

The product of its (nonzero) digits is 83980800, while the sum is 57.

The spelling of 266613634305345 in words is "two hundred sixty-six trillion, six hundred thirteen billion, six hundred thirty-four million, three hundred five thousand, three hundred forty-five".