16772663430509 has 4 divisors (see below), whose sum is σ = 19168758206304. Its totient is φ = 14376568654716.

The previous prime is 16772663430503. The next prime is 16772663430511. The reversal of 16772663430509 is 90503436627761.

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 16772663430509 - 2⁴ = 16772663430493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16772663430503) 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, 1198047387887 + ... + 1198047387900.

It is an arithmetic number, because the mean of its divisors is an integer number (4792189551576).

Almost surely, 2^{16772663430509} is an apocalyptic number.

It is an amenable number.

16772663430509 is a deficient number, since it is larger than the sum of its proper divisors (2396094775795).

16772663430509 is an equidigital number, since it uses as much as digits as its factorization.

16772663430509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396094775794.

The product of its (nonzero) digits is 34292160, while the sum is 59.

The spelling of 16772663430509 in words is "sixteen trillion, seven hundred seventy-two billion, six hundred sixty-three million, four hundred thirty thousand, five hundred nine".