16780055003 has 8 divisors (see below), whose sum is σ = 17786466720. Its totient is φ = 15775793280.

The previous prime is 16780054999. The next prime is 16780055021. The reversal of 16780055003 is 30055008761.

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

It is not a de Polignac number, because 16780055003 - 2² = 16780054999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16780058003) 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 7 ways as a sum of consecutive naturals, for example, 521408 + ... + 552653.

It is an arithmetic number, because the mean of its divisors is an integer number (2223308340).

Almost surely, 2^16780055003 is an apocalyptic number.

16780055003 is a deficient number, since it is larger than the sum of its proper divisors (1006411717).

16780055003 is a wasteful number, since it uses less digits than its factorization.

16780055003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074997.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 16780055003 in words is "sixteen billion, seven hundred eighty million, fifty-five thousand, three".