16853553669 has 16 divisors (see below), whose sum is σ = 23633068032. Its totient is φ = 10662564528.

The previous prime is 16853553643. The next prime is 16853553671. The reversal of 16853553669 is 96635535861.

It is not a de Polignac number, because 16853553669 - 2⁵ = 16853553637 is a prime.

It is a super-2 number, since 2×16853553669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16853553569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 952869 + ... + 970394.

It is an arithmetic number, because the mean of its divisors is an integer number (1477066752).

Almost surely, 2^16853553669 is an apocalyptic number.

It is an amenable number.

16853553669 is a deficient number, since it is larger than the sum of its proper divisors (6779514363).

16853553669 is a wasteful number, since it uses less digits than its factorization.

16853553669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923416.

The product of its digits is 17496000, while the sum is 57.

The spelling of 16853553669 in words is "sixteen billion, eight hundred fifty-three million, five hundred fifty-three thousand, six hundred sixty-nine".