16678298743 has 4 divisors (see below), whose sum is σ = 17556103960. Its totient is φ = 15800493528.

The previous prime is 16678298731. The next prime is 16678298761. The reversal of 16678298743 is 34789287661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34789287661 = 29 ⋅1199630609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16678298743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16678298773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438902580 + ... + 438902617.

It is an arithmetic number, because the mean of its divisors is an integer number (4389025990).

Almost surely, 2^16678298743 is an apocalyptic number.

16678298743 is a deficient number, since it is larger than the sum of its proper divisors (877805217).

16678298743 is an equidigital number, since it uses as much as digits as its factorization.

16678298743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877805216.

The product of its digits is 24385536, while the sum is 61.

The spelling of 16678298743 in words is "sixteen billion, six hundred seventy-eight million, two hundred ninety-eight thousand, seven hundred forty-three".