16650005616 has 30 divisors (see below), whose sum is σ = 46596891120. Its totient is φ = 5550001824.

The previous prime is 16650005599. The next prime is 16650005623. The reversal of 16650005616 is 61650005661.

16650005616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57812376 + ... + 57812663.

It is an arithmetic number, because the mean of its divisors is an integer number (1553229704).

Almost surely, 2^16650005616 is an apocalyptic number.

16650005616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16650005616 is an abundant number, since it is smaller than the sum of its proper divisors (29946885504).

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

16650005616 is a wasteful number, since it uses less digits than its factorization.

16650005616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115625053 (or 115625044 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 16650005616 in words is "sixteen billion, six hundred fifty million, five thousand, six hundred sixteen".