2265161368772 has 12 divisors (see below), whose sum is σ = 3970029423276. Its totient is φ = 1130867247840.

The previous prime is 2265161368711. The next prime is 2265161368777. The reversal of 2265161368772 is 2778631615622.

It can be written as a sum of positive squares in 2 ways, for example, as 1439505642436 + 825655726336 = 1199794^2 + 908656^2 .

It is not an unprimeable number, because it can be changed into a prime (2265161368777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428356163 + ... + 428361450.

It is an arithmetic number, because the mean of its divisors is an integer number (330835785273).

Almost surely, 2^{2265161368772} is an apocalyptic number.

It is an amenable number.

2265161368772 is a deficient number, since it is larger than the sum of its proper divisors (1704868054504).

2265161368772 is a wasteful number, since it uses less digits than its factorization.

2265161368772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856718278 (or 856718276 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 56.

The spelling of 2265161368772 in words is "two trillion, two hundred sixty-five billion, one hundred sixty-one million, three hundred sixty-eight thousand, seven hundred seventy-two".