66911084 has 12 divisors (see below), whose sum is σ = 123257400. Its totient is φ = 31694688.

The previous prime is 66911021. The next prime is 66911087. The reversal of 66911084 is 48011966.

It is not an unprimeable number, because it can be changed into a prime (66911087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440129 + ... + 440280.

It is an arithmetic number, because the mean of its divisors is an integer number (10271450).

Almost surely, 2^66911084 is an apocalyptic number.

It is an amenable number.

66911084 is a deficient number, since it is larger than the sum of its proper divisors (56346316).

66911084 is a wasteful number, since it uses less digits than its factorization.

66911084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880432 (or 880430 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 66911084 is about 8179.9195595067. The cubic root of 66911084 is about 405.9750605500.

The spelling of 66911084 in words is "sixty-six million, nine hundred eleven thousand, eighty-four".