66727116 has 36 divisors (see below), whose sum is σ = 169393224. Its totient is φ = 22147200.

The previous prime is 66727079. The next prime is 66727121. The reversal of 66727116 is 61172766.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4831 + ... + 12521.

Almost surely, 2^66727116 is an apocalyptic number.

It is an amenable number.

66727116 is an abundant number, since it is smaller than the sum of its proper divisors (102666108).

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

66727116 is a wasteful number, since it uses less digits than its factorization.

66727116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7942 (or 7937 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 66727116 is about 8168.6667210751. Note that the first 3 decimals coincide. The cubic root of 66727116 is about 405.6026510336.

The spelling of 66727116 in words is "sixty-six million, seven hundred twenty-seven thousand, one hundred sixteen".