16652635861 has 32 divisors (see below), whose sum is σ = 18063360000. Its totient is φ = 15304655808.

The previous prime is 16652635793. The next prime is 16652635897. The reversal of 16652635861 is 16853625661.

16652635861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16652635861 - 2²⁵ = 16619081429 is a prime.

It is a super-2 number, since 2×16652635861² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16652635361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43479276 + ... + 43479658.

It is an arithmetic number, because the mean of its divisors is an integer number (564480000).

Almost surely, 2^16652635861 is an apocalyptic number.

It is an amenable number.

16652635861 is a deficient number, since it is larger than the sum of its proper divisors (1410724139).

16652635861 is a wasteful number, since it uses less digits than its factorization.

16652635861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913.

The product of its digits is 1555200, while the sum is 49.

The spelling of 16652635861 in words is "sixteen billion, six hundred fifty-two million, six hundred thirty-five thousand, eight hundred sixty-one".