16001850816 has 252 divisors, whose sum is σ = 55078944960. Its totient is φ = 4424232960.

The previous prime is 16001850751. The next prime is 16001850833. The reversal of 16001850816 is 61805810061.

It is a tau number, because it is divible by the number of its divisors (252).

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 polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 865800 + ... + 884088.

Almost surely, 2^16001850816 is an apocalyptic number.

16001850816 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 16001850816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27539472480).

16001850816 is an abundant number, since it is smaller than the sum of its proper divisors (39077094144).

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

16001850816 is a wasteful number, since it uses less digits than its factorization.

16001850816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18352 (or 18332 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The spelling of 16001850816 in words is "sixteen billion, one million, eight hundred fifty thousand, eight hundred sixteen".