265020065117 has 4 divisors (see below), whose sum is σ = 266500624320. Its totient is φ = 263539505916.

The previous prime is 265020065099. The next prime is 265020065171. The reversal of 265020065117 is 711560020562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 265020065117 - 2³² = 260725097821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265020065197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740279333 + ... + 740279690.

It is an arithmetic number, because the mean of its divisors is an integer number (66625156080).

Almost surely, 2^265020065117 is an apocalyptic number.

It is an amenable number.

265020065117 is a deficient number, since it is larger than the sum of its proper divisors (1480559203).

265020065117 is a wasteful number, since it uses less digits than its factorization.

265020065117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480559202.

The product of its (nonzero) digits is 25200, while the sum is 35.

Adding to 265020065117 its reverse (711560020562), we get a palindrome (976580085679).

The spelling of 265020065117 in words is "two hundred sixty-five billion, twenty million, sixty-five thousand, one hundred seventeen".