16222161930920 has 128 divisors (see below), whose sum is σ = 40791939552000. Its totient is φ = 5754704947200.

The previous prime is 16222161930917. The next prime is 16222161930971. The reversal of 16222161930920 is 2903916122261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489354506 + ... + 489387654.

It is an arithmetic number, because the mean of its divisors is an integer number (318687027750).

Almost surely, 2^{16222161930920} is an apocalyptic number.

16222161930920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16222161930920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20395969776000).

16222161930920 is an abundant number, since it is smaller than the sum of its proper divisors (24569777621080).

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

16222161930920 is a wasteful number, since it uses less digits than its factorization.

16222161930920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60339 (or 60335 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 16222161930920 in words is "sixteen trillion, two hundred twenty-two billion, one hundred sixty-one million, nine hundred thirty thousand, nine hundred twenty".