16742289664 has 27 divisors (see below), whose sum is σ = 33423312727. Its totient is φ = 8370109696.

The previous prime is 16742289661. The next prime is 16742289709. The reversal of 16742289664 is 46698224761.

The square root of 16742289664 is 129392.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16742289661) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2066229 + ... + 2074315.

Almost surely, 2^16742289664 is an apocalyptic number.

16742289664 is the 129392-nd square number.

It is an amenable number.

16742289664 is a deficient number, since it is larger than the sum of its proper divisors (16681023063).

16742289664 is an frugal number, since it uses more digits than its factorization.

16742289664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16190 (or 8089 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 55.

The spelling of 16742289664 in words is "sixteen billion, seven hundred forty-two million, two hundred eighty-nine thousand, six hundred sixty-four".