16545720173154 has 16 divisors (see below), whose sum is σ = 33633922975680. Its totient is φ = 5424826286160.

The previous prime is 16545720173113. The next prime is 16545720173159. The reversal of 16545720173154 is 45137102754561.

It is a junction number, because it is equal to n+sod(n) for n = 16545720173097 and 16545720173106.

It is not an unprimeable number, because it can be changed into a prime (16545720173159) 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, 22603442494 + ... + 22603443225.

It is an arithmetic number, because the mean of its divisors is an integer number (2102120185980).

Almost surely, 2^{16545720173154} is an apocalyptic number.

16545720173154 is an abundant number, since it is smaller than the sum of its proper divisors (17088202802526).

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

16545720173154 is a wasteful number, since it uses less digits than its factorization.

16545720173154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45206885785.

The product of its (nonzero) digits is 3528000, while the sum is 51.

The spelling of 16545720173154 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty million, one hundred seventy-three thousand, one hundred fifty-four".