16189040669 has 4 divisors (see below), whose sum is σ = 16211557440. Its totient is φ = 16166523900.

The previous prime is 16189040657. The next prime is 16189040671. The reversal of 16189040669 is 96604098161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16189040669 is a prime.

It is a super-2 number, since 2×16189040669² (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 (16189042669) 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, 11257307 + ... + 11258744.

It is an arithmetic number, because the mean of its divisors is an integer number (4052889360).

Almost surely, 2^16189040669 is an apocalyptic number.

It is an amenable number.

16189040669 is a deficient number, since it is larger than the sum of its proper divisors (22516771).

16189040669 is an equidigital number, since it uses as much as digits as its factorization.

16189040669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22516770.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 16189040669 in words is "sixteen billion, one hundred eighty-nine million, forty thousand, six hundred sixty-nine".