16205603064 has 256 divisors, whose sum is σ = 49034956800. Its totient is φ = 4367001600.

The previous prime is 16205603053. The next prime is 16205603119. The reversal of 16205603064 is 46030650261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29954634 + ... + 29955174.

It is an arithmetic number, because the mean of its divisors is an integer number (191542800).

Almost surely, 2^16205603064 is an apocalyptic number.

16205603064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16205603064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24517478400).

16205603064 is an abundant number, since it is smaller than the sum of its proper divisors (32829353736).

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

16205603064 is a wasteful number, since it uses less digits than its factorization.

16205603064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 16205603064 in words is "sixteen billion, two hundred five million, six hundred three thousand, sixty-four".