20167216219320 has 128 divisors (see below), whose sum is σ = 61129593907200. Its totient is φ = 5322114625536.

The previous prime is 20167216219279. The next prime is 20167216219321. The reversal of 20167216219320 is 2391261276102.

It is a happy number.

It is a super-2 number, since 2×20167216219320² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20167216219321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196420237 + ... + 196522883.

It is an arithmetic number, because the mean of its divisors is an integer number (477574952400).

Almost surely, 2^{20167216219320} is an apocalyptic number.

20167216219320 is a gapful number since it is divisible by the number (20) 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 20167216219320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30564796953600).

20167216219320 is an abundant number, since it is smaller than the sum of its proper divisors (40962377687880).

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

20167216219320 is a wasteful number, since it uses less digits than its factorization.

20167216219320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119637 (or 119633 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 20167216219320 in words is "twenty trillion, one hundred sixty-seven billion, two hundred sixteen million, two hundred nineteen thousand, three hundred twenty".