16616155051409 has 8 divisors (see below), whose sum is σ = 17764387355520. Its totient is φ = 15486901793856.

The previous prime is 16616155051399. The next prime is 16616155051423. The reversal of 16616155051409 is 90415055161661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16616155051409 - 2²⁸ = 16615886615953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16616155051439) 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 7 ways as a sum of consecutive naturals, for example, 4744759829 + ... + 4744763330.

It is an arithmetic number, because the mean of its divisors is an integer number (2220548419440).

Almost surely, 2^{16616155051409} is an apocalyptic number.

It is an amenable number.

16616155051409 is a deficient number, since it is larger than the sum of its proper divisors (1148232304111).

16616155051409 is a wasteful number, since it uses less digits than its factorization.

16616155051409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9489523279.

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 16616155051409 in words is "sixteen trillion, six hundred sixteen billion, one hundred fifty-five million, fifty-one thousand, four hundred nine".