617216126265 has 24 divisors (see below), whose sum is σ = 1076926339008. Its totient is φ = 327001917600.

The previous prime is 617216126249. The next prime is 617216126287. The reversal of 617216126265 is 562621612716.

617216126265 is a `hidden beast` number, since 6 + 1 + 7 + 2 + 1 + 6 + 12 + 626 + 5 = 666.

It is not a de Polignac number, because 617216126265 - 2⁴ = 617216126249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 617216126265.

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 23 ways as a sum of consecutive naturals, for example, 45410139 + ... + 45423728.

It is an arithmetic number, because the mean of its divisors is an integer number (44871930792).

Almost surely, 2^617216126265 is an apocalyptic number.

It is an amenable number.

617216126265 is a deficient number, since it is larger than the sum of its proper divisors (459710212743).

617216126265 is a wasteful number, since it uses less digits than its factorization.

617216126265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90834029 (or 90834026 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 617216126265 in words is "six hundred seventeen billion, two hundred sixteen million, one hundred twenty-six thousand, two hundred sixty-five".