840220113866 has 32 divisors (see below), whose sum is σ = 1458276825600. Its totient is φ = 355622710896.

The previous prime is 840220113851. The next prime is 840220113917. The reversal of 840220113866 is 668311022048.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3002285 + ... + 3270191.

It is an arithmetic number, because the mean of its divisors is an integer number (45571150800).

Almost surely, 2^840220113866 is an apocalyptic number.

840220113866 is a deficient number, since it is larger than the sum of its proper divisors (618056711734).

840220113866 is a wasteful number, since it uses less digits than its factorization.

840220113866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270698.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 840220113866 in words is "eight hundred forty billion, two hundred twenty million, one hundred thirteen thousand, eight hundred sixty-six".