220163625642556 has 6 divisors (see below), whose sum is σ = 385286344874480. Its totient is φ = 110081812821276.

The previous prime is 220163625642509. The next prime is 220163625642619. The reversal of 220163625642556 is 655246526361022.

It is a junction number, because it is equal to n+sod(n) for n = 220163625642497 and 220163625642506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27520453205316 + ... + 27520453205323.

Almost surely, 2^{220163625642556} is an apocalyptic number.

It is an amenable number.

220163625642556 is a deficient number, since it is larger than the sum of its proper divisors (165122719231924).

220163625642556 is a wasteful number, since it uses less digits than its factorization.

220163625642556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55040906410643 (or 55040906410641 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 55.

The spelling of 220163625642556 in words is "two hundred twenty trillion, one hundred sixty-three billion, six hundred twenty-five million, six hundred forty-two thousand, five hundred fifty-six".