16504310020145 has 4 divisors (see below), whose sum is σ = 19805172024180. Its totient is φ = 13203448016112.

The previous prime is 16504310020109. The next prime is 16504310020193. The reversal of 16504310020145 is 54102001340561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4402371901489 + 12101938118656 = 2098183^2 + 3478784^2 .

It is a cyclic number.

It is not a de Polignac number, because 16504310020145 - 2¹² = 16504310016049 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 1650431002010 + ... + 1650431002019.

It is an arithmetic number, because the mean of its divisors is an integer number (4951293006045).

Almost surely, 2^{16504310020145} is an apocalyptic number.

It is an amenable number.

16504310020145 is a deficient number, since it is larger than the sum of its proper divisors (3300862004035).

16504310020145 is an equidigital number, since it uses as much as digits as its factorization.

16504310020145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300862004034.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 16504310020145 in words is "sixteen trillion, five hundred four billion, three hundred ten million, twenty thousand, one hundred forty-five".