63651617163 has 12 divisors (see below), whose sum is σ = 94907071168. Its totient is φ = 41065559280.

The previous prime is 63651617129. The next prime is 63651617201. The reversal of 63651617163 is 36171615636.

It is a happy number.

63651617163 is a `hidden beast` number, since 6 + 3 + 6 + 516 + 1 + 71 + 63 = 666.

It is not a de Polignac number, because 63651617163 - 2⁸ = 63651616907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63651617663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114070720 + ... + 114071277.

Almost surely, 2^63651617163 is an apocalyptic number.

63651617163 is a deficient number, since it is larger than the sum of its proper divisors (31255454005).

63651617163 is a wasteful number, since it uses less digits than its factorization.

63651617163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228142034 (or 228142031 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The spelling of 63651617163 in words is "sixty-three billion, six hundred fifty-one million, six hundred seventeen thousand, one hundred sixty-three".