16643387475354 has 32 divisors (see below), whose sum is σ = 33346977336000. Its totient is φ = 5537770543872.

The previous prime is 16643387475353. The next prime is 16643387475389. The reversal of 16643387475354 is 45357478334661.

16643387475354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16643387475353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6832722 + ... + 8942754.

It is an arithmetic number, because the mean of its divisors is an integer number (1042093041750).

Almost surely, 2^{16643387475354} is an apocalyptic number.

16643387475354 is an abundant number, since it is smaller than the sum of its proper divisors (16703589860646).

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

16643387475354 is a wasteful number, since it uses less digits than its factorization.

16643387475354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112414.

The product of its digits is 609638400, while the sum is 66.

The spelling of 16643387475354 in words is "sixteen trillion, six hundred forty-three billion, three hundred eighty-seven million, four hundred seventy-five thousand, three hundred fifty-four".