16426642660543 has 8 divisors (see below), whose sum is σ = 17637886404000. Its totient is φ = 15242617877760.

The previous prime is 16426642660517. The next prime is 16426642660663. The reversal of 16426642660543 is 34506624662461.

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 16426642660543 - 2²¹ = 16426640563391 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 (16426642660943) 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, 6804738918 + ... + 6804741331.

It is an arithmetic number, because the mean of its divisors is an integer number (2204735800500).

Almost surely, 2^{16426642660543} is an apocalyptic number.

16426642660543 is a deficient number, since it is larger than the sum of its proper divisors (1211243743457).

16426642660543 is a wasteful number, since it uses less digits than its factorization.

16426642660543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13609480337.

The product of its (nonzero) digits is 29859840, while the sum is 55.

The spelling of 16426642660543 in words is "sixteen trillion, four hundred twenty-six billion, six hundred forty-two million, six hundred sixty thousand, five hundred forty-three".