16328913216 has 672 divisors, whose sum is σ = 58115850240. Its totient is φ = 3953664000.

The previous prime is 16328913199. The next prime is 16328913221. The reversal of 16328913216 is 61231982361.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 206695065 + ... + 206695143.

It is an arithmetic number, because the mean of its divisors is an integer number (86481920).

Almost surely, 2^16328913216 is an apocalyptic number.

16328913216 is a gapful number since it is divisible by the number (16) 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 16328913216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29057925120).

16328913216 is an abundant number, since it is smaller than the sum of its proper divisors (41786937024).

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

16328913216 is a wasteful number, since it uses less digits than its factorization.

16328913216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 174 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The spelling of 16328913216 in words is "sixteen billion, three hundred twenty-eight million, nine hundred thirteen thousand, two hundred sixteen".