16555335074673 has 4 divisors (see below), whose sum is σ = 22073780099568. Its totient is φ = 11036890049780.

The previous prime is 16555335074567. The next prime is 16555335074731. The reversal of 16555335074673 is 37647053355561.

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 16555335074673 - 2²⁰ = 16555334026097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16555335075673) 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, 2759222512443 + ... + 2759222512448.

It is an arithmetic number, because the mean of its divisors is an integer number (5518445024892).

Almost surely, 2^{16555335074673} is an apocalyptic number.

It is an amenable number.

16555335074673 is a deficient number, since it is larger than the sum of its proper divisors (5518445024895).

16555335074673 is an equidigital number, since it uses as much as digits as its factorization.

16555335074673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5518445024894.

The product of its (nonzero) digits is 119070000, while the sum is 60.

The spelling of 16555335074673 in words is "sixteen trillion, five hundred fifty-five billion, three hundred thirty-five million, seventy-four thousand, six hundred seventy-three".