16040343563 has 8 divisors (see below), whose sum is σ = 16498814160. Its totient is φ = 15583186080.

The previous prime is 16040343503. The next prime is 16040343593. The reversal of 16040343563 is 36534304061.

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 16040343563 - 2⁶ = 16040343499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16040343503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303473 + ... + 352386.

It is an arithmetic number, because the mean of its divisors is an integer number (2062351770).

Almost surely, 2^16040343563 is an apocalyptic number.

16040343563 is a deficient number, since it is larger than the sum of its proper divisors (458470597).

16040343563 is an equidigital number, since it uses as much as digits as its factorization.

16040343563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656557.

The product of its (nonzero) digits is 77760, while the sum is 35.

The spelling of 16040343563 in words is "sixteen billion, forty million, three hundred forty-three thousand, five hundred sixty-three".