68196663 has 6 divisors (see below), whose sum is σ = 98506304. Its totient is φ = 45464436.

The previous prime is 68196647. The next prime is 68196721. The reversal of 68196663 is 36669186.

It is not a de Polignac number, because 68196663 - 2⁴ = 68196647 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 (68196563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3788695 + ... + 3788712.

Almost surely, 2^68196663 is an apocalyptic number.

68196663 is a deficient number, since it is larger than the sum of its proper divisors (30309641).

68196663 is a wasteful number, since it uses less digits than its factorization.

68196663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7577413 (or 7577410 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 68196663 is about 8258.1270879056. The cubic root of 68196663 is about 408.5586170240.

It can be divided in two parts, 681 and 96663, that added together give a square (97344 = 312²).

The spelling of 68196663 in words is "sixty-eight million, one hundred ninety-six thousand, six hundred sixty-three".