16327985444 has 24 divisors (see below), whose sum is σ = 30767597280. Its totient is φ = 7553522816.

The previous prime is 16327985437. The next prime is 16327985447. The reversal of 16327985444 is 44458972361.

It is not an unprimeable number, because it can be changed into a prime (16327985447) 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, 2030882 + ... + 2038905.

It is an arithmetic number, because the mean of its divisors is an integer number (1281983220).

Almost surely, 2^16327985444 is an apocalyptic number.

It is an amenable number.

16327985444 is a deficient number, since it is larger than the sum of its proper divisors (14439611836).

16327985444 is a wasteful number, since it uses less digits than its factorization.

16327985444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069867 (or 4069865 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 53.

The spelling of 16327985444 in words is "sixteen billion, three hundred twenty-seven million, nine hundred eighty-five thousand, four hundred forty-four".