219345377200168 has 8 divisors (see below), whose sum is σ = 411272582250330. Its totient is φ = 109672688600080.

The previous prime is 219345377200163. The next prime is 219345377200171. The reversal of 219345377200168 is 861002773543912.

It can be written as a sum of positive squares in only one way, i.e., 193337845541604 + 26007531658564 = 13904598^2 + 5099758^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×219345377200168² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (219345377200163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13709086075003 + ... + 13709086075018.

It is a 1-persistent number, because it is pandigital, but 2⋅219345377200168 = 438690754400336 is not.

Almost surely, 2^{219345377200168} is an apocalyptic number.

It is an amenable number.

219345377200168 is a deficient number, since it is larger than the sum of its proper divisors (191927205050162).

219345377200168 is a wasteful number, since it uses less digits than its factorization.

219345377200168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27418172150027 (or 27418172150023 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 219345377200168 in words is "two hundred nineteen trillion, three hundred forty-five billion, three hundred seventy-seven million, two hundred thousand, one hundred sixty-eight".