63534216666223 has 16 divisors (see below), whose sum is σ = 69258596499360. Its totient is φ = 58038525582336.

The previous prime is 63534216666209. The next prime is 63534216666233. The reversal of 63534216666223 is 32266661243536.

It is not a de Polignac number, because 63534216666223 - 2⁵ = 63534216666191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63534216666233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123224761 + ... + 123739282.

It is an arithmetic number, because the mean of its divisors is an integer number (4328662281210).

Almost surely, 2^{63534216666223} is an apocalyptic number.

63534216666223 is a deficient number, since it is larger than the sum of its proper divisors (5724379833137).

63534216666223 is a wasteful number, since it uses less digits than its factorization.

63534216666223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246964506.

The product of its digits is 33592320, while the sum is 55.

The spelling of 63534216666223 in words is "sixty-three trillion, five hundred thirty-four billion, two hundred sixteen million, six hundred sixty-six thousand, two hundred twenty-three".