16000999959 has 16 divisors (see below), whose sum is σ = 25169008640. Its totient is φ = 8848478880.

The previous prime is 16000999939. The next prime is 16000999961. The reversal of 16000999959 is 95999900061.

It is not a de Polignac number, because 16000999959 - 2²⁴ = 15984222743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16000999899 and 16000999908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16000999939) 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, 12288904 + ... + 12290205.

It is an arithmetic number, because the mean of its divisors is an integer number (1573063040).

Almost surely, 2^16000999959 is an apocalyptic number.

16000999959 is a deficient number, since it is larger than the sum of its proper divisors (9168008681).

16000999959 is a wasteful number, since it uses less digits than its factorization.

16000999959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24579150.

The product of its (nonzero) digits is 1771470, while the sum is 57.

The spelling of 16000999959 in words is "sixteen billion, nine hundred ninety-nine thousand, nine hundred fifty-nine".