162616586465 has 4 divisors (see below), whose sum is σ = 195139903764. Its totient is φ = 130093269168.

The previous prime is 162616586459. The next prime is 162616586467. The reversal of 162616586465 is 564685616261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 564685616261 = 13 ⋅43437355097.

It can be written as a sum of positive squares in 2 ways, for example, as 86676659281 + 75939927184 = 294409^2 + 275572^2 .

It is a cyclic number.

It is not a de Polignac number, because 162616586465 - 2¹² = 162616582369 is a prime.

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 162616586465.

It is not an unprimeable number, because it can be changed into a prime (162616586467) 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, 16261658642 + ... + 16261658651.

It is an arithmetic number, because the mean of its divisors is an integer number (48784975941).

Almost surely, 2^162616586465 is an apocalyptic number.

It is an amenable number.

162616586465 is a deficient number, since it is larger than the sum of its proper divisors (32523317299).

162616586465 is an equidigital number, since it uses as much as digits as its factorization.

162616586465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32523317298.

The product of its digits is 12441600, while the sum is 56.

The spelling of 162616586465 in words is "one hundred sixty-two billion, six hundred sixteen million, five hundred eighty-six thousand, four hundred sixty-five".