220077643682 has 162 divisors, whose sum is σ = 405902275443. Its totient is φ = 89421366528.

The previous prime is 220077643661. The next prime is 220077643693. The reversal of 220077643682 is 286346770022.

It can be written as a sum of positive squares in 5 ways, for example, as 89221092601 + 130856551081 = 298699^2 + 361741^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=331721.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2785792919 + ... + 2785792997.

Almost surely, 2^220077643682 is an apocalyptic number.

220077643682 is a deficient number, since it is larger than the sum of its proper divisors (185824631761).

220077643682 is a wasteful number, since it uses less digits than its factorization.

220077643682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 220077643682 in words is "two hundred twenty billion, seventy-seven million, six hundred forty-three thousand, six hundred eighty-two".