1266625275275 has 12 divisors (see below), whose sum is σ = 1596363135744. Its totient is φ = 996688740000.

The previous prime is 1266625275263. The next prime is 1266625275361. The reversal of 1266625275275 is 5725725266621.

It is not a de Polignac number, because 1266625275275 - 2¹⁴ = 1266625258891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1266625275275.

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, 415285451 + ... + 415288500.

It is an arithmetic number, because the mean of its divisors is an integer number (133030261312).

Almost surely, 2^{1266625275275} is an apocalyptic number.

1266625275275 is a deficient number, since it is larger than the sum of its proper divisors (329737860469).

1266625275275 is an equidigital number, since it uses as much as digits as its factorization.

1266625275275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830574022 (or 830574017 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 56.

The spelling of 1266625275275 in words is "one trillion, two hundred sixty-six billion, six hundred twenty-five million, two hundred seventy-five thousand, two hundred seventy-five".