16545720173010 has 128 divisors (see below), whose sum is σ = 46446664771584. Its totient is φ = 3693235392000.

The previous prime is 16545720173009. The next prime is 16545720173033. The reversal of 16545720173010 is 1037102754561.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48746385 + ... + 49084635.

It is an arithmetic number, because the mean of its divisors is an integer number (362864568528).

Almost surely, 2^{16545720173010} is an apocalyptic number.

16545720173010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16545720173010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23223332385792).

16545720173010 is an abundant number, since it is smaller than the sum of its proper divisors (29900944598574).

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

16545720173010 is a wasteful number, since it uses less digits than its factorization.

16545720173010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343728.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 16545720173010 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty million, one hundred seventy-three thousand, ten".