216544145022 has 12 divisors (see below), whose sum is σ = 469178980920. Its totient is φ = 72181381668.

The previous prime is 216544144991. The next prime is 216544145047. The reversal of 216544145022 is 220541445612.

216544145022 is a `hidden beast` number, since 2 + 165 + 4 + 41 + 450 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6015115122 + ... + 6015115157.

It is an arithmetic number, because the mean of its divisors is an integer number (39098248410).

Almost surely, 2^216544145022 is an apocalyptic number.

216544145022 is an abundant number, since it is smaller than the sum of its proper divisors (252634835898).

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

216544145022 is a wasteful number, since it uses less digits than its factorization.

216544145022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12030230287 (or 12030230284 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 216544145022 in words is "two hundred sixteen billion, five hundred forty-four million, one hundred forty-five thousand, twenty-two".