265240513650463 has 16 divisors (see below), whose sum is σ = 292802676528096. Its totient is φ = 238708913679360.

The previous prime is 265240513650443. The next prime is 265240513650517. The reversal of 265240513650463 is 364056315042562.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265240513650463 is a prime.

It is a super-2 number, since 2×265240513650463² (a number of 30 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 265240513650463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265240513650443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162562170 + ... + 164185687.

It is an arithmetic number, because the mean of its divisors is an integer number (18300167283006).

Almost surely, 2^{265240513650463} is an apocalyptic number.

265240513650463 is a deficient number, since it is larger than the sum of its proper divisors (27562162877633).

265240513650463 is a wasteful number, since it uses less digits than its factorization.

265240513650463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326749434.

The product of its (nonzero) digits is 15552000, while the sum is 52.

The spelling of 265240513650463 in words is "two hundred sixty-five trillion, two hundred forty billion, five hundred thirteen million, six hundred fifty thousand, four hundred sixty-three".