16601616330 has 64 divisors (see below), whose sum is σ = 43101434880. Its totient is φ = 4068205056.

The previous prime is 16601616319. The next prime is 16601616331. The reversal of 16601616330 is 3361610661.

It is a super-2 number, since 2×16601616330² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16601616291 and 16601616300.

It is not an unprimeable number, because it can be changed into a prime (16601616331) 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 31 ways as a sum of consecutive naturals, for example, 8475 + ... + 182414.

It is an arithmetic number, because the mean of its divisors is an integer number (673459920).

Almost surely, 2^16601616330 is an apocalyptic number.

16601616330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16601616330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21550717440).

16601616330 is an abundant number, since it is smaller than the sum of its proper divisors (26499818550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16601616330 is a wasteful number, since it uses less digits than its factorization.

16601616330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191135.

The product of its (nonzero) digits is 11664, while the sum is 33.

The spelling of 16601616330 in words is "sixteen billion, six hundred one million, six hundred sixteen thousand, three hundred thirty".