16007663729 has 4 divisors (see below), whose sum is σ = 16009449984. Its totient is φ = 16005877476.

The previous prime is 16007663713. The next prime is 16007663767. The reversal of 16007663729 is 92736670061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16007663729 - 2⁴ = 16007663713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16007663129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879617 + ... + 897630.

It is an arithmetic number, because the mean of its divisors is an integer number (4002362496).

Almost surely, 2^16007663729 is an apocalyptic number.

It is an amenable number.

16007663729 is a deficient number, since it is larger than the sum of its proper divisors (1786255).

16007663729 is an equidigital number, since it uses as much as digits as its factorization.

16007663729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786254.

The product of its (nonzero) digits is 571536, while the sum is 47.

The spelling of 16007663729 in words is "sixteen billion, seven million, six hundred sixty-three thousand, seven hundred twenty-nine".