63166636 has 12 divisors (see below), whose sum is σ = 119044912. Its totient is φ = 29153808.

The previous prime is 63166633. The next prime is 63166651. The reversal of 63166636 is 63666136.

It is a junction number, because it is equal to n+sod(n) for n = 63166595 and 63166604.

It is not an unprimeable number, because it can be changed into a prime (63166633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607320 + ... + 607423.

Almost surely, 2^63166636 is an apocalyptic number.

It is an amenable number.

63166636 is a deficient number, since it is larger than the sum of its proper divisors (55878276).

63166636 is a wasteful number, since it uses less digits than its factorization.

63166636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214760 (or 1214758 counting only the distinct ones).

The product of its digits is 69984, while the sum is 37.

The square root of 63166636 is about 7947.7440824425. The cubic root of 63166636 is about 398.2562342490.

Subtracting 63166636 from its reverse (63666136), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 63166636 in words is "sixty-three million, one hundred sixty-six thousand, six hundred thirty-six".