16001616155 has 24 divisors (see below), whose sum is σ = 22567261248. Its totient is φ = 10859401728.

The previous prime is 16001616151. The next prime is 16001616167. The reversal of 16001616155 is 55161610061.

It is not a de Polignac number, because 16001616155 - 2² = 16001616151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16001616151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312899 + ... + 360428.

It is an arithmetic number, because the mean of its divisors is an integer number (940302552).

Almost surely, 2^16001616155 is an apocalyptic number.

16001616155 is a deficient number, since it is larger than the sum of its proper divisors (6565645093).

16001616155 is an equidigital number, since it uses as much as digits as its factorization.

16001616155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673443 (or 673436 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 16001616155 in words is "sixteen billion, one million, six hundred sixteen thousand, one hundred fifty-five".