16543726746 has 24 divisors (see below), whose sum is σ = 33227162304. Its totient is φ = 5491388280.

The previous prime is 16543726699. The next prime is 16543726769. The reversal of 16543726746 is 64762734561.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318591 + ... + 366861.

It is an arithmetic number, because the mean of its divisors is an integer number (1384465096).

Almost surely, 2^16543726746 is an apocalyptic number.

16543726746 is an abundant number, since it is smaller than the sum of its proper divisors (16683435558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16543726746 is an equidigital number, since it uses as much as digits as its factorization.

16543726746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48754 (or 48515 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 51.

The spelling of 16543726746 in words is "sixteen billion, five hundred forty-three million, seven hundred twenty-six thousand, seven hundred forty-six".