16720541504746 has 16 divisors (see below), whose sum is σ = 25095008995200. Its totient is φ = 8355538811088.

The previous prime is 16720541504741. The next prime is 16720541504759. The reversal of 16720541504746 is 64740514502761.

It is a junction number, because it is equal to n+sod(n) for n = 16720541504693 and 16720541504702.

It is not an unprimeable number, because it can be changed into a prime (16720541504741) 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, 151854600 + ... + 151964668.

It is an arithmetic number, because the mean of its divisors is an integer number (1568438062200).

Almost surely, 2^{16720541504746} is an apocalyptic number.

16720541504746 is a deficient number, since it is larger than the sum of its proper divisors (8374467490454).

16720541504746 is a wasteful number, since it uses less digits than its factorization.

16720541504746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152373.

The product of its (nonzero) digits is 5644800, while the sum is 52.

The spelling of 16720541504746 in words is "sixteen trillion, seven hundred twenty billion, five hundred forty-one million, five hundred four thousand, seven hundred forty-six".