16545204711040 has 64 divisors (see below), whose sum is σ = 39758320101960. Its totient is φ = 6583791255552.

The previous prime is 16545204711011. The next prime is 16545204711053. The reversal of 16545204711040 is 4011740254561.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15704227676736 + 840977034304 = 3962856^2 + 917048^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 16545204710984 and 16545204711002.

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 7 ways as a sum of consecutive naturals, for example, 66850269 + ... + 67097308.

Almost surely, 2^{16545204711040} is an apocalyptic number.

16545204711040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16545204711040 is an abundant number, since it is smaller than the sum of its proper divisors (23213115390920).

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

16545204711040 is a wasteful number, since it uses less digits than its factorization.

16545204711040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133947789 (or 133947777 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 16545204711040 in words is "sixteen trillion, five hundred forty-five billion, two hundred four million, seven hundred eleven thousand, forty".