216572179972512 has 384 divisors, whose sum is σ = 725504594411520. Its totient is φ = 55027536261120.

The previous prime is 216572179972501. The next prime is 216572179972517. The reversal of 216572179972512 is 215279971275612.

It is a super-2 number, since 2×216572179972512² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216572179972517) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58598914 + ... + 62185022.

It is an arithmetic number, because the mean of its divisors is an integer number (1889334881280).

Almost surely, 2^{216572179972512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216572179972512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362752297205760).

216572179972512 is an abundant number, since it is smaller than the sum of its proper divisors (508932414439008).

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

216572179972512 is a wasteful number, since it uses less digits than its factorization.

216572179972512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586396 (or 3586388 counting only the distinct ones).

The product of its digits is 66679200, while the sum is 66.

The spelling of 216572179972512 in words is "two hundred sixteen trillion, five hundred seventy-two billion, one hundred seventy-nine million, nine hundred seventy-two thousand, five hundred twelve".