16545723554445 has 16 divisors (see below), whose sum is σ = 26907143880192. Its totient is φ = 8679723831360.

The previous prime is 16545723554417. The next prime is 16545723554453. The reversal of 16545723554445 is 54445532754561.

It is not a de Polignac number, because 16545723554445 - 2²⁰ = 16545722505869 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9041378077 + ... + 9041379906.

It is an arithmetic number, because the mean of its divisors is an integer number (1681696492512).

Almost surely, 2^{16545723554445} is an apocalyptic number.

16545723554445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16545723554445 is a deficient number, since it is larger than the sum of its proper divisors (10361420325747).

16545723554445 is a wasteful number, since it uses less digits than its factorization.

16545723554445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18082758052.

The product of its digits is 201600000, while the sum is 60.

The spelling of 16545723554445 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty-three million, five hundred fifty-four thousand, four hundred forty-five".