16000001100999 has 6 divisors (see below), whose sum is σ = 23111112701456. Its totient is φ = 10666667400660.

The previous prime is 16000001100953. The next prime is 16000001101157. The reversal of 16000001100999 is 99900110000061.

16000001100999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16000001100999 - 2⁹ = 16000001100487 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 (16000001100599) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 888888950047 + ... + 888888950064.

Almost surely, 2^{16000001100999} is an apocalyptic number.

16000001100999 is a deficient number, since it is larger than the sum of its proper divisors (7111111600457).

16000001100999 is a wasteful number, since it uses less digits than its factorization.

16000001100999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777777900117 (or 1777777900114 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 36.

The spelling of 16000001100999 in words is "sixteen trillion, one million, one hundred thousand, nine hundred ninety-nine".