266780302675 has 12 divisors (see below), whose sum is σ = 330870050640. Its totient is φ = 213383935520.

The previous prime is 266780302651. The next prime is 266780302681. The reversal of 266780302675 is 576203087662.

It is not a de Polignac number, because 266780302675 - 2³¹ = 264632819027 is a prime.

It is a super-2 number, since 2×266780302675² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 872287 + ... + 1137736.

It is an arithmetic number, because the mean of its divisors is an integer number (27572504220).

Almost surely, 2^266780302675 is an apocalyptic number.

266780302675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

266780302675 is a deficient number, since it is larger than the sum of its proper divisors (64089747965).

266780302675 is a wasteful number, since it uses less digits than its factorization.

266780302675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015342 (or 2015337 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 266780302675 in words is "two hundred sixty-six billion, seven hundred eighty million, three hundred two thousand, six hundred seventy-five".