16773055426021 has 4 divisors (see below), whose sum is σ = 16775608020544. Its totient is φ = 16770502831500.

The previous prime is 16773055426019. The next prime is 16773055426067. The reversal of 16773055426021 is 12062455037761.

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 16773055426021 - 2¹ = 16773055426019 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 (16773055426921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276287405 + ... + 1276300546.

It is an arithmetic number, because the mean of its divisors is an integer number (4193902005136).

Almost surely, 2^{16773055426021} is an apocalyptic number.

It is an amenable number.

16773055426021 is a deficient number, since it is larger than the sum of its proper divisors (2552594523).

16773055426021 is an equidigital number, since it uses as much as digits as its factorization.

16773055426021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552594522.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 16773055426021 in words is "sixteen trillion, seven hundred seventy-three billion, fifty-five million, four hundred twenty-six thousand, twenty-one".