63534216666165 has 64 divisors (see below), whose sum is σ = 123282733363200. Its totient is φ = 27310549837824.

The previous prime is 63534216666163. The next prime is 63534216666181. The reversal of 63534216666165 is 56166661243536.

It is not a de Polignac number, because 63534216666165 - 2¹ = 63534216666163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63534216666099 and 63534216666108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63534216666163) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 222808060 + ... + 223093029.

It is an arithmetic number, because the mean of its divisors is an integer number (1926292708800).

Almost surely, 2^{63534216666165} is an apocalyptic number.

It is an amenable number.

63534216666165 is a deficient number, since it is larger than the sum of its proper divisors (59748516697035).

63534216666165 is a wasteful number, since it uses less digits than its factorization.

63534216666165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445901186.

The product of its digits is 83980800, while the sum is 60.

The spelling of 63534216666165 in words is "sixty-three trillion, five hundred thirty-four billion, two hundred sixteen million, six hundred sixty-six thousand, one hundred sixty-five".