2169542016 has 128 divisors (see below), whose sum is σ = 6454886400. Its totient is φ = 717341184.

The previous prime is 2169541993. The next prime is 2169542033. The reversal of 2169542016 is 6102459612.

2169542016 is a `hidden beast` number, since 216 + 9 + 5 + 420 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 436441 + ... + 441383.

It is an arithmetic number, because the mean of its divisors is an integer number (50428800).

Almost surely, 2^2169542016 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 2169542016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3227443200).

2169542016 is an abundant number, since it is smaller than the sum of its proper divisors (4285344384).

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

2169542016 is a wasteful number, since it uses less digits than its factorization.

2169542016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093 (or 5075 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2169542016 is about 46578.3427785919. The cubic root of 2169542016 is about 1294.5615040685.

The spelling of 2169542016 in words is "two billion, one hundred sixty-nine million, five hundred forty-two thousand, sixteen".