220306320684 has 36 divisors (see below), whose sum is σ = 558317039280. Its totient is φ = 73246655520.

The previous prime is 220306320679. The next prime is 220306320697. The reversal of 220306320684 is 486023603022.

220306320684 is a `hidden beast` number, since 2 + 20 + 306 + 320 + 6 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7851832 + ... + 7879839.

Almost surely, 2^220306320684 is an apocalyptic number.

It is an amenable number.

220306320684 is an abundant number, since it is smaller than the sum of its proper divisors (338010718596).

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

220306320684 is a wasteful number, since it uses less digits than its factorization.

220306320684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15732070 (or 15732065 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 220306320684 in words is "two hundred twenty billion, three hundred six million, three hundred twenty thousand, six hundred eighty-four".