66116208 has 20 divisors (see below), whose sum is σ = 170800328. Its totient is φ = 22038720.

The previous prime is 66116119. The next prime is 66116227. The reversal of 66116208 is 80261166.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 688663 + ... + 688758.

Almost surely, 2^66116208 is an apocalyptic number.

It is an amenable number.

66116208 is an abundant number, since it is smaller than the sum of its proper divisors (104684120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66116208 is a wasteful number, since it uses less digits than its factorization.

66116208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377432 (or 1377426 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 66116208 is about 8131.1873671685. The cubic root of 66116208 is about 404.3610470434.

The spelling of 66116208 in words is "sixty-six million, one hundred sixteen thousand, two hundred eight".