16522121610 has 112 divisors (see below), whose sum is σ = 45256180896. Its totient is φ = 4340011104.

The previous prime is 16522121591. The next prime is 16522121611. The reversal of 16522121610 is 1612122561.

16522121610 is a `hidden beast` number, since 1 + 6 + 5 + 2 + 21 + 21 + 610 = 666.

16522121610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (16522121611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 471517 + ... + 505343.

Almost surely, 2^16522121610 is an apocalyptic number.

16522121610 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 16522121610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22628090448).

16522121610 is an abundant number, since it is smaller than the sum of its proper divisors (28734059286).

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

16522121610 is an equidigital number, since it uses as much as digits as its factorization.

16522121610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33919 (or 33904 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 16522121610 in words is "sixteen billion, five hundred twenty-two million, one hundred twenty-one thousand, six hundred ten".