2016432668885 has 8 divisors (see below), whose sum is σ = 2562055626456. Its totient is φ = 1518255185920.

The previous prime is 2016432668881. The next prime is 2016432668903. The reversal of 2016432668885 is 5888662346102.

It can be written as a sum of positive squares in 4 ways, for example, as 1144989881764 + 871442787121 = 1070042^2 + 933511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2016432668885 - 2² = 2016432668881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016432668881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11861368556 + ... + 11861368725.

It is an arithmetic number, because the mean of its divisors is an integer number (320256953307).

Almost surely, 2^{2016432668885} is an apocalyptic number.

It is an amenable number.

2016432668885 is a deficient number, since it is larger than the sum of its proper divisors (545622957571).

2016432668885 is a wasteful number, since it uses less digits than its factorization.

2016432668885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23722737303.

The product of its (nonzero) digits is 26542080, while the sum is 59.

The spelling of 2016432668885 in words is "two trillion, sixteen billion, four hundred thirty-two million, six hundred sixty-eight thousand, eight hundred eighty-five".