221544025163346 has 16 divisors (see below), whose sum is σ = 444426684923808. Its totient is φ = 73624902621600.

The previous prime is 221544025163323. The next prime is 221544025163371. The reversal of 221544025163346 is 643361520445122.

221544025163346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221544025163295 and 221544025163304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55776439395 + ... + 55776443366.

It is an arithmetic number, because the mean of its divisors is an integer number (27776667807738).

Almost surely, 2^{221544025163346} is an apocalyptic number.

221544025163346 is an abundant number, since it is smaller than the sum of its proper divisors (222882659760462).

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

221544025163346 is a wasteful number, since it uses less digits than its factorization.

221544025163346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111552883097.

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 221544025163346 in words is "two hundred twenty-one trillion, five hundred forty-four billion, twenty-five million, one hundred sixty-three thousand, three hundred forty-six".