220664597606484 has 24 divisors (see below), whose sum is σ = 532638683878560. Its totient is φ = 71018491183584.

The previous prime is 220664597606459. The next prime is 220664597606491. The reversal of 220664597606484 is 484606795466022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317046835294 + ... + 317046835989.

It is an arithmetic number, because the mean of its divisors is an integer number (22193278494940).

Almost surely, 2^{220664597606484} is an apocalyptic number.

It is an amenable number.

220664597606484 is an abundant number, since it is smaller than the sum of its proper divisors (311974086272076).

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

220664597606484 is a wasteful number, since it uses less digits than its factorization.

220664597606484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634093671319 (or 634093671317 counting only the distinct ones).

The product of its (nonzero) digits is 836075520, while the sum is 69.

The spelling of 220664597606484 in words is "two hundred twenty trillion, six hundred sixty-four billion, five hundred ninety-seven million, six hundred six thousand, four hundred eighty-four".