16773256505 has 8 divisors (see below), whose sum is σ = 20185915392. Its totient is φ = 13379933488.

The previous prime is 16773256481. The next prime is 16773256541. The reversal of 16773256505 is 50565237761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16773256505 - 2¹⁰ = 16773255481 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 16773256505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4832057 + ... + 4835526.

It is an arithmetic number, because the mean of its divisors is an integer number (2523239424).

Almost surely, 2^16773256505 is an apocalyptic number.

It is an amenable number.

16773256505 is a deficient number, since it is larger than the sum of its proper divisors (3412658887).

16773256505 is an equidigital number, since it uses as much as digits as its factorization.

16773256505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9667935.

The product of its (nonzero) digits is 1323000, while the sum is 47.

The spelling of 16773256505 in words is "sixteen billion, seven hundred seventy-three million, two hundred fifty-six thousand, five hundred five".