2665012775 has 6 divisors (see below), whose sum is σ = 3304615872. Its totient is φ = 2132010200.

The previous prime is 2665012747. The next prime is 2665012787. The reversal of 2665012775 is 5772105662.

It is not a de Polignac number, because 2665012775 - 2¹⁸ = 2664750631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53300231 + ... + 53300280.

It is an arithmetic number, because the mean of its divisors is an integer number (550769312).

Almost surely, 2^2665012775 is an apocalyptic number.

2665012775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2665012775 is a deficient number, since it is larger than the sum of its proper divisors (639603097).

2665012775 is a wasteful number, since it uses less digits than its factorization.

2665012775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106600521 (or 106600516 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 2665012775 is about 51623.7617284909. The cubic root of 2665012775 is about 1386.4358033040.

The spelling of 2665012775 in words is "two billion, six hundred sixty-five million, twelve thousand, seven hundred seventy-five".