16206220064 has 48 divisors (see below), whose sum is σ = 32702745600. Its totient is φ = 7902929664.

The previous prime is 16206220057. The next prime is 16206220081. The reversal of 16206220064 is 46002260261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205982 + ... + 273570.

It is an arithmetic number, because the mean of its divisors is an integer number (681307200).

Almost surely, 2^16206220064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16206220064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16351372800).

16206220064 is an abundant number, since it is smaller than the sum of its proper divisors (16496525536).

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

16206220064 is a wasteful number, since it uses less digits than its factorization.

16206220064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67785 (or 67777 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 16206220064 in words is "sixteen billion, two hundred six million, two hundred twenty thousand, sixty-four".