20655530234650 has 12 divisors (see below), whose sum is σ = 38419286236542. Its totient is φ = 8262212093840.

The previous prime is 20655530234623. The next prime is 20655530234671. The reversal of 20655530234650 is 5643203555602.

It can be written as a sum of positive squares in 3 ways, for example, as 15061609903041 + 5593920331609 = 3880929^2 + 2365147^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20655530234650.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206555302297 + ... + 206555302396.

Almost surely, 2^{20655530234650} is an apocalyptic number.

20655530234650 is a deficient number, since it is larger than the sum of its proper divisors (17763756001892).

20655530234650 is a wasteful number, since it uses less digits than its factorization.

20655530234650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413110604705 (or 413110604700 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 46.

The spelling of 20655530234650 in words is "twenty trillion, six hundred fifty-five billion, five hundred thirty million, two hundred thirty-four thousand, six hundred fifty".