216453164366220 has 24 divisors (see below), whose sum is σ = 606068860225584. Its totient is φ = 57720843830976.

The previous prime is 216453164366213. The next prime is 216453164366287. The reversal of 216453164366220 is 22663461354612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1803776369659 + ... + 1803776369778.

It is an arithmetic number, because the mean of its divisors is an integer number (25252869176066).

Almost surely, 2^{216453164366220} is an apocalyptic number.

216453164366220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216453164366220 is an abundant number, since it is smaller than the sum of its proper divisors (389615695859364).

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

216453164366220 is a wasteful number, since it uses less digits than its factorization.

216453164366220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607552739449 (or 3607552739447 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 51.

The spelling of 216453164366220 in words is "two hundred sixteen trillion, four hundred fifty-three billion, one hundred sixty-four million, three hundred sixty-six thousand, two hundred twenty".