4400661406178 has 16 divisors (see below), whose sum is σ = 6674224035840. Its totient is φ = 2176030767456.

The previous prime is 4400661406177. The next prime is 4400661406217. The reversal of 4400661406178 is 8716041660044.

It is not an unprimeable number, because it can be changed into a prime (4400661406177) 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, 27596918 + ... + 27755921.

It is an arithmetic number, because the mean of its divisors is an integer number (417139002240).

Almost surely, 2^{4400661406178} is an apocalyptic number.

4400661406178 is a deficient number, since it is larger than the sum of its proper divisors (2273562629662).

4400661406178 is a wasteful number, since it uses less digits than its factorization.

4400661406178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55353281.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 4400661406178 in words is "four trillion, four hundred billion, six hundred sixty-one million, four hundred six thousand, one hundred seventy-eight".