16344681603 has 8 divisors (see below), whose sum is σ = 23074844688. Its totient is φ = 10255486464.

The previous prime is 16344681589. The next prime is 16344681623. The reversal of 16344681603 is 30618644361.

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

It is not a de Polignac number, because 16344681603 - 2¹² = 16344677507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16344681623) 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, 160241926 + ... + 160242027.

It is an arithmetic number, because the mean of its divisors is an integer number (2884355586).

Almost surely, 2^16344681603 is an apocalyptic number.

16344681603 is a deficient number, since it is larger than the sum of its proper divisors (6730163085).

16344681603 is a wasteful number, since it uses less digits than its factorization.

16344681603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320483973.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 16344681603 in words is "sixteen billion, three hundred forty-four million, six hundred eighty-one thousand, six hundred three".