220646843876 has 12 divisors (see below), whose sum is σ = 387207555840. Its totient is φ = 110016113640.

The previous prime is 220646843867. The next prime is 220646843909. The reversal of 220646843876 is 678348646022.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76825460 + ... + 76828331.

It is an arithmetic number, because the mean of its divisors is an integer number (32267296320).

Almost surely, 2^220646843876 is an apocalyptic number.

It is an amenable number.

220646843876 is a deficient number, since it is larger than the sum of its proper divisors (166560711964).

220646843876 is a wasteful number, since it uses less digits than its factorization.

220646843876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153654154 (or 153654152 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 56.

The spelling of 220646843876 in words is "two hundred twenty billion, six hundred forty-six million, eight hundred forty-three thousand, eight hundred seventy-six".