1266416375 has 16 divisors (see below), whose sum is σ = 1806272832. Its totient is φ = 868399200.

The previous prime is 1266416339. The next prime is 1266416387. The reversal of 1266416375 is 5736146621.

It is not a de Polignac number, because 1266416375 - 2¹⁴ = 1266399991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 722792 + ... + 724541.

It is an arithmetic number, because the mean of its divisors is an integer number (112892052).

Almost surely, 2^1266416375 is an apocalyptic number.

1266416375 is a deficient number, since it is larger than the sum of its proper divisors (539856457).

1266416375 is an equidigital number, since it uses as much as digits as its factorization.

1266416375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447355 (or 1447345 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 1266416375 is about 35586.7443720271. The cubic root of 1266416375 is about 1081.9125846333.

The spelling of 1266416375 in words is "one billion, two hundred sixty-six million, four hundred sixteen thousand, three hundred seventy-five".