16169288640 has 112 divisors (see below), whose sum is σ = 51538034592. Its totient is φ = 4294967296.

The previous prime is 16169288623. The next prime is 16169288669. The reversal of 16169288640 is 4688296161.

It is a super-2 number, since 2×16169288640² (a number of 21 digits) contains 22 as substring.

It is a zygodrome in base 2 and base 4.

It is a congruent number.

It is an unprimeable number.

In principle, a polygon with 16169288640 sides can be constructed with ruler and compass.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213952 + ... + 279488.

Almost surely, 2^16169288640 is an apocalyptic number.

16169288640 is a gapful number since it is divisible by the number (10) 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 16169288640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25769017296).

16169288640 is an abundant number, since it is smaller than the sum of its proper divisors (35368745952).

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

16169288640 is a wasteful number, since it uses less digits than its factorization.

16169288640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65814 (or 65804 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 16169288640 in words is "sixteen billion, one hundred sixty-nine million, two hundred eighty-eight thousand, six hundred forty".