16465110505 has 8 divisors (see below), whose sum is σ = 19791455112. Its totient is φ = 13149873408.

The previous prime is 16465110503. The next prime is 16465110509. The reversal of 16465110505 is 50501156461.

It can be written as a sum of positive squares in 4 ways, for example, as 489161689 + 15975948816 = 22117^2 + 126396^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16465110505 - 2¹ = 16465110503 is a prime.

It is a super-2 number, since 2×16465110505² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16465110503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2773614 + ... + 2779543.

It is an arithmetic number, because the mean of its divisors is an integer number (2473931889).

Almost surely, 2^16465110505 is an apocalyptic number.

It is an amenable number.

16465110505 is a deficient number, since it is larger than the sum of its proper divisors (3326344607).

16465110505 is an equidigital number, since it uses as much as digits as its factorization.

16465110505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553755.

The product of its (nonzero) digits is 18000, while the sum is 34.

Adding to 16465110505 its reverse (50501156461), we get a palindrome (66966266966).

The spelling of 16465110505 in words is "sixteen billion, four hundred sixty-five million, one hundred ten thousand, five hundred five".