66634168 has 16 divisors (see below), whose sum is σ = 125115480. Its totient is φ = 33270048.

The previous prime is 66634157. The next prime is 66634171. The reversal of 66634168 is 86143666.

It is a super-2 number, since 2×66634168² = 8880224690104448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66634168.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555 + ... + 11557.

Almost surely, 2^66634168 is an apocalyptic number.

It is an amenable number.

66634168 is a deficient number, since it is larger than the sum of its proper divisors (58481312).

66634168 is a wasteful number, since it uses less digits than its factorization.

66634168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11766 (or 11762 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 66634168 is about 8162.9754379148. The cubic root of 66634168 is about 405.4142345106.

The spelling of 66634168 in words is "sixty-six million, six hundred thirty-four thousand, one hundred sixty-eight".