216497543622 has 16 divisors (see below), whose sum is σ = 435753019632. Its totient is φ = 71706192480.

The previous prime is 216497543593. The next prime is 216497543623. The reversal of 216497543622 is 226345794612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216497543623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114912829 + ... + 114914712.

It is an arithmetic number, because the mean of its divisors is an integer number (27234563727).

Almost surely, 2^216497543622 is an apocalyptic number.

216497543622 is an abundant number, since it is smaller than the sum of its proper divisors (219255476010).

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

216497543622 is a wasteful number, since it uses less digits than its factorization.

216497543622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229827703.

The product of its digits is 4354560, while the sum is 51.

The spelling of 216497543622 in words is "two hundred sixteen billion, four hundred ninety-seven million, five hundred forty-three thousand, six hundred twenty-two".