16021530345 has 16 divisors (see below), whose sum is σ = 25734199680. Its totient is φ = 8511565824.

The previous prime is 16021530319. The next prime is 16021530359. The reversal of 16021530345 is 54303512061.

It is not a de Polignac number, because 16021530345 - 2¹² = 16021526249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2074165 + ... + 2081874.

It is an arithmetic number, because the mean of its divisors is an integer number (1608387480).

Almost surely, 2^16021530345 is an apocalyptic number.

16021530345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16021530345 is a deficient number, since it is larger than the sum of its proper divisors (9712669335).

16021530345 is a wasteful number, since it uses less digits than its factorization.

16021530345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156304.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 16021530345 in words is "sixteen billion, twenty-one million, five hundred thirty thousand, three hundred forty-five".