219812016816 has 160 divisors (see below), whose sum is σ = 729764958720. Its totient is φ = 62046694656.

The previous prime is 219812016769. The next prime is 219812016821. The reversal of 219812016816 is 618610218912.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186895 + ... + 688878.

It is an arithmetic number, because the mean of its divisors is an integer number (4561030992).

Almost surely, 2^219812016816 is an apocalyptic number.

It is an amenable number.

219812016816 is an abundant number, since it is smaller than the sum of its proper divisors (509952941904).

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

219812016816 is a wasteful number, since it uses less digits than its factorization.

219812016816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875880 (or 875868 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 219812016816 in words is "two hundred nineteen billion, eight hundred twelve million, sixteen thousand, eight hundred sixteen".