265056155705 has 32 divisors (see below), whose sum is σ = 352909709568. Its totient is φ = 189502617600.

The previous prime is 265056155681. The next prime is 265056155783. The reversal of 265056155705 is 507551650562.

It is not a de Polignac number, because 265056155705 - 2¹⁸ = 265055893561 is a prime.

It is a super-2 number, since 2×265056155705² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 265056155705.

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 31 ways as a sum of consecutive naturals, for example, 605345 + ... + 946865.

It is an arithmetic number, because the mean of its divisors is an integer number (11028428424).

Almost surely, 2^265056155705 is an apocalyptic number.

It is an amenable number.

265056155705 is a deficient number, since it is larger than the sum of its proper divisors (87853553863).

265056155705 is a wasteful number, since it uses less digits than its factorization.

265056155705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341777.

The product of its (nonzero) digits is 1575000, while the sum is 47.

The spelling of 265056155705 in words is "two hundred sixty-five billion, fifty-six million, one hundred fifty-five thousand, seven hundred five".