220457668682 has 8 divisors (see below), whose sum is σ = 330688718976. Its totient is φ = 110228095692.

The previous prime is 220457668649. The next prime is 220457668693. The reversal of 220457668682 is 286866754022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 149543 + ... + 680645.

It is an arithmetic number, because the mean of its divisors is an integer number (41336089872).

Almost surely, 2^220457668682 is an apocalyptic number.

220457668682 is a deficient number, since it is larger than the sum of its proper divisors (110231050294).

220457668682 is a wasteful number, since it uses less digits than its factorization.

220457668682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738652.

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 220457668682 in words is "two hundred twenty billion, four hundred fifty-seven million, six hundred sixty-eight thousand, six hundred eighty-two".