16021221704160 has 288 divisors, whose sum is σ = 52775733306240. Its totient is φ = 4084685706240.

The previous prime is 16021221704141. The next prime is 16021221704179. The reversal of 16021221704160 is 6140712212061.

It is an interprime number because it is at equal distance from previous prime (16021221704141) and next prime (16021221704179).

It is a super-2 number, since 2×16021221704160² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38077011 + ... + 38495469.

It is an arithmetic number, because the mean of its divisors is an integer number (183249073980).

Almost surely, 2^{16021221704160} is an apocalyptic number.

16021221704160 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 16021221704160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26387866653120).

16021221704160 is an abundant number, since it is smaller than the sum of its proper divisors (36754511602080).

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

16021221704160 is a wasteful number, since it uses less digits than its factorization.

16021221704160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418622 (or 418583 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 16021221704160 in words is "sixteen trillion, twenty-one billion, two hundred twenty-one million, seven hundred four thousand, one hundred sixty".