16005065665100 has 36 divisors (see below), whose sum is σ = 35669667974304. Its totient is φ = 6228998527680.

The previous prime is 16005065665093. The next prime is 16005065665111. The reversal of 16005065665100 is 156656050061.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2162843012 + ... + 2162850411.

Almost surely, 2^{16005065665100} is an apocalyptic number.

16005065665100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16005065665100 is an abundant number, since it is smaller than the sum of its proper divisors (19664602309204).

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

16005065665100 is a wasteful number, since it uses less digits than its factorization.

16005065665100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4325693474 (or 4325693467 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 16005065665100 in words is "sixteen trillion, five billion, sixty-five million, six hundred sixty-five thousand, one hundred".