221563067704552 has 16 divisors (see below), whose sum is σ = 474778002224160. Its totient is φ = 94955600444784.

The previous prime is 221563067704541. The next prime is 221563067704553. The reversal of 221563067704552 is 255407760365122.

It is a junction number, because it is equal to n+sod(n) for n = 221563067704493 and 221563067704502.

It is not an unprimeable number, because it can be changed into a prime (221563067704553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1978241675878 + ... + 1978241675989.

It is an arithmetic number, because the mean of its divisors is an integer number (29673625139010).

Almost surely, 2^{221563067704552} is an apocalyptic number.

It is an amenable number.

221563067704552 is an abundant number, since it is smaller than the sum of its proper divisors (253214934519608).

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

221563067704552 is a wasteful number, since it uses less digits than its factorization.

221563067704552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956483351880 (or 3956483351876 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 55.

The spelling of 221563067704552 in words is "two hundred twenty-one trillion, five hundred sixty-three billion, sixty-seven million, seven hundred four thousand, five hundred fifty-two".