16465650653 has 8 divisors (see below), whose sum is σ = 17043312600. Its totient is φ = 15888647488.

The previous prime is 16465650581. The next prime is 16465650659. The reversal of 16465650653 is 35605656461.

It can be written as a sum of positive squares in 4 ways, for example, as 1158517369 + 15307133284 = 34037^2 + 123722^2 .

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 16465650653 - 2²⁸ = 16197215197 is a prime.

It is a super-2 number, since 2×16465650653² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16465650598 and 16465650607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16465650659) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 113558 + ... + 214071.

It is an arithmetic number, because the mean of its divisors is an integer number (2130414075).

Almost surely, 2^16465650653 is an apocalyptic number.

It is an amenable number.

16465650653 is a deficient number, since it is larger than the sum of its proper divisors (577661947).

16465650653 is a wasteful number, since it uses less digits than its factorization.

16465650653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329391.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 16465650653 in words is "sixteen billion, four hundred sixty-five million, six hundred fifty thousand, six hundred fifty-three".