84400066606 has 16 divisors (see below), whose sum is σ = 129834731520. Its totient is φ = 41129336920.

The previous prime is 84400066519. The next prime is 84400066607. The reversal of 84400066606 is 60666000448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84400066607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1855930 + ... + 1900861.

It is an arithmetic number, because the mean of its divisors is an integer number (8114670720).

Almost surely, 2^84400066606 is an apocalyptic number.

84400066606 is a deficient number, since it is larger than the sum of its proper divisors (45434664914).

84400066606 is a wasteful number, since it uses less digits than its factorization.

84400066606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757079.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 84400066606 in words is "eighty-four billion, four hundred million, sixty-six thousand, six hundred six".