16676520446473 has 16 divisors (see below), whose sum is σ = 17709990869520. Its totient is φ = 15648952320000.

The previous prime is 16676520446437. The next prime is 16676520446503. The reversal of 16676520446473 is 37464402567661.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 13371915769 + 16663148530704 = 115637^2 + 4082052^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16676520446473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16676520446413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6646723 + ... + 8805223.

It is an arithmetic number, because the mean of its divisors is an integer number (1106874429345).

Almost surely, 2^{16676520446473} is an apocalyptic number.

It is an amenable number.

16676520446473 is a deficient number, since it is larger than the sum of its proper divisors (1033470423047).

16676520446473 is a wasteful number, since it uses less digits than its factorization.

16676520446473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159868.

The product of its (nonzero) digits is 121927680, while the sum is 61.

The spelling of 16676520446473 in words is "sixteen trillion, six hundred seventy-six billion, five hundred twenty million, four hundred forty-six thousand, four hundred seventy-three".