16773551121 has 4 divisors (see below), whose sum is σ = 22364734832. Its totient is φ = 11182367412.

The previous prime is 16773551089. The next prime is 16773551191. The reversal of 16773551121 is 12115537761.

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 not a de Polignac number, because 16773551121 - 2⁵ = 16773551089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16773551121.

It is not an unprimeable number, because it can be changed into a prime (16773551191) 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, 2795591851 + ... + 2795591856.

It is an arithmetic number, because the mean of its divisors is an integer number (5591183708).

Almost surely, 2^16773551121 is an apocalyptic number.

It is an amenable number.

16773551121 is a deficient number, since it is larger than the sum of its proper divisors (5591183711).

16773551121 is an equidigital number, since it uses as much as digits as its factorization.

16773551121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5591183710.

The product of its digits is 44100, while the sum is 39.

The spelling of 16773551121 in words is "sixteen billion, seven hundred seventy-three million, five hundred fifty-one thousand, one hundred twenty-one".