16601616105 has 32 divisors (see below), whose sum is σ = 27059702400. Its totient is φ = 8689477632.

The previous prime is 16601616077. The next prime is 16601616121. The reversal of 16601616105 is 50161610661.

It is not a de Polignac number, because 16601616105 - 2¹⁵ = 16601583337 is a prime.

It is a super-2 number, since 2×16601616105² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 239641 + ... + 301049.

It is an arithmetic number, because the mean of its divisors is an integer number (845615700).

Almost surely, 2^16601616105 is an apocalyptic number.

16601616105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16601616105 is a deficient number, since it is larger than the sum of its proper divisors (10458086295).

16601616105 is a wasteful number, since it uses less digits than its factorization.

16601616105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61753.

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 16601616105 in words is "sixteen billion, six hundred one million, six hundred sixteen thousand, one hundred five".