16611827899 has 8 divisors (see below), whose sum is σ = 17604270000. Its totient is φ = 15621083136.

The previous prime is 16611827833. The next prime is 16611827929. The reversal of 16611827899 is 99872811661.

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 16611827899 - 2⁹ = 16611827387 is a prime.

It is a super-2 number, since 2×16611827899² (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 (16611827599) 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, 404149 + ... + 443350.

It is an arithmetic number, because the mean of its divisors is an integer number (2200533750).

Almost surely, 2^16611827899 is an apocalyptic number.

16611827899 is a deficient number, since it is larger than the sum of its proper divisors (992442101).

16611827899 is a wasteful number, since it uses less digits than its factorization.

16611827899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848669.

The product of its digits is 2612736, while the sum is 58.

The spelling of 16611827899 in words is "sixteen billion, six hundred eleven million, eight hundred twenty-seven thousand, eight hundred ninety-nine".