16722624401 has 8 divisors (see below), whose sum is σ = 19501603200. Its totient is φ = 14333677764.

The previous prime is 16722624389. The next prime is 16722624433. The reversal of 16722624401 is 10442622761.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-16722624401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16722624491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24376661 + ... + 24377346.

It is an arithmetic number, because the mean of its divisors is an integer number (2437700400).

Almost surely, 2^16722624401 is an apocalyptic number.

It is an amenable number.

16722624401 is a deficient number, since it is larger than the sum of its proper divisors (2778978799).

16722624401 is an frugal number, since it uses more digits than its factorization.

16722624401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48754028 (or 48754014 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 16722624401 in words is "sixteen billion, seven hundred twenty-two million, six hundred twenty-four thousand, four hundred one".