16306535385220 has 12 divisors (see below), whose sum is σ = 34243724309004. Its totient is φ = 6522614154080.

The previous prime is 16306535385187. The next prime is 16306535385223. The reversal of 16306535385220 is 2258353560361.

16306535385220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9287670714624 + 7018864670596 = 3047568^2 + 2649314^2 .

It is not an unprimeable number, because it can be changed into a prime (16306535385223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407663384611 + ... + 407663384650.

It is an arithmetic number, because the mean of its divisors is an integer number (2853643692417).

Almost surely, 2^{16306535385220} is an apocalyptic number.

16306535385220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16306535385220 is an abundant number, since it is smaller than the sum of its proper divisors (17937188923784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16306535385220 is a wasteful number, since it uses less digits than its factorization.

16306535385220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815326769270 (or 815326769268 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 16306535385220 in words is "sixteen trillion, three hundred six billion, five hundred thirty-five million, three hundred eighty-five thousand, two hundred twenty".