16550313013 has 8 divisors (see below), whose sum is σ = 17826387768. Its totient is φ = 15274663104.

The previous prime is 16550312983. The next prime is 16550313019. The reversal of 16550313013 is 31031305561.

It can be written as a sum of positive squares in 4 ways, for example, as 775455409 + 15774857604 = 27847^2 + 125598^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16550313013 - 2³³ = 7960378421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16550313019) 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, 22870 + ... + 183367.

It is an arithmetic number, because the mean of its divisors is an integer number (2228298471).

Almost surely, 2^16550313013 is an apocalyptic number.

16550313013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16550313013 is a deficient number, since it is larger than the sum of its proper divisors (1276074755).

16550313013 is a wasteful number, since it uses less digits than its factorization.

16550313013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212423.

The product of its (nonzero) digits is 4050, while the sum is 28.

Adding to 16550313013 its reverse (31031305561), we get a palindrome (47581618574).

The spelling of 16550313013 in words is "sixteen billion, five hundred fifty million, three hundred thirteen thousand, thirteen".