16654122819 has 6 divisors (see below), whose sum is σ = 24055955196. Its totient is φ = 11102748540.

The previous prime is 16654122803. The next prime is 16654122829. The reversal of 16654122819 is 91822145661.

16654122819 is a `hidden beast` number, since 1 + 6 + 6 + 541 + 22 + 81 + 9 = 666.

It is not a de Polignac number, because 16654122819 - 2⁴ = 16654122803 is a prime.

It is a super-2 number, since 2×16654122819² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16654122829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 925229037 + ... + 925229054.

It is an arithmetic number, because the mean of its divisors is an integer number (4009325866).

Almost surely, 2^16654122819 is an apocalyptic number.

16654122819 is a deficient number, since it is larger than the sum of its proper divisors (7401832377).

16654122819 is a wasteful number, since it uses less digits than its factorization.

16654122819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850458097 (or 1850458094 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The spelling of 16654122819 in words is "sixteen billion, six hundred fifty-four million, one hundred twenty-two thousand, eight hundred nineteen".