265053065405 has 16 divisors (see below), whose sum is σ = 318403837440. Its totient is φ = 211815808512.

The previous prime is 265053065377. The next prime is 265053065423. The reversal of 265053065405 is 504560350562.

It is a cyclic number.

It is not a de Polignac number, because 265053065405 - 2⁶ = 265053065341 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22810157 + ... + 22821773.

It is an arithmetic number, because the mean of its divisors is an integer number (19900239840).

Almost surely, 2^265053065405 is an apocalyptic number.

It is an amenable number.

265053065405 is a deficient number, since it is larger than the sum of its proper divisors (53350772035).

265053065405 is a wasteful number, since it uses less digits than its factorization.

265053065405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16108.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 265053065405 in words is "two hundred sixty-five billion, fifty-three million, sixty-five thousand, four hundred five".