16620002016 has 24 divisors (see below), whose sum is σ = 43627505544. Its totient is φ = 5540000640.

The previous prime is 16620001949. The next prime is 16620002017. The reversal of 16620002016 is 61020002661.

16620002016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16620002017) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 86562415 + ... + 86562606.

It is an arithmetic number, because the mean of its divisors is an integer number (1817812731).

Almost surely, 2^16620002016 is an apocalyptic number.

16620002016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16620002016 is an abundant number, since it is smaller than the sum of its proper divisors (27007503528).

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

16620002016 is a wasteful number, since it uses less digits than its factorization.

16620002016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173125034 (or 173125026 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 16620002016 its reverse (61020002661), we get a palindrome (77640004677).

The spelling of 16620002016 in words is "sixteen billion, six hundred twenty million, two thousand, sixteen".