16534221540210 has 144 divisors (see below), whose sum is σ = 47388530262528. Its totient is φ = 3996743931840.

The previous prime is 16534221540209. The next prime is 16534221540283. The reversal of 16534221540210 is 1204512243561.

16534221540210 is a `hidden beast` number, since 1 + 6 + 5 + 3 + 422 + 15 + 4 + 0 + 210 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1591087 + ... + 5966573.

It is an arithmetic number, because the mean of its divisors is an integer number (329087015712).

Almost surely, 2^{16534221540210} is an apocalyptic number.

16534221540210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16534221540210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23694265131264).

16534221540210 is an abundant number, since it is smaller than the sum of its proper divisors (30854308722318).

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

16534221540210 is a wasteful number, since it uses less digits than its factorization.

16534221540210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375869 (or 4375855 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 16534221540210 its reverse (1204512243561), we get a palindrome (17738733783771).

The spelling of 16534221540210 in words is "sixteen trillion, five hundred thirty-four billion, two hundred twenty-one million, five hundred forty thousand, two hundred ten".