866223738716402 has 32 divisors (see below), whose sum is σ = 1426856219639424. Its totient is φ = 391127220288000.

The previous prime is 866223738716389. The next prime is 866223738716407. The reversal of 866223738716402 is 204617837322668.

866223738716402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (866223738716407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415715618 + ... + 417794114.

It is an arithmetic number, because the mean of its divisors is an integer number (44589256863732).

Almost surely, 2^{866223738716402} is an apocalyptic number.

866223738716402 is a deficient number, since it is larger than the sum of its proper divisors (560632480923022).

866223738716402 is a wasteful number, since it uses less digits than its factorization.

866223738716402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204114.

The product of its (nonzero) digits is 195084288, while the sum is 65.

The spelling of 866223738716402 in words is "eight hundred sixty-six trillion, two hundred twenty-three billion, seven hundred thirty-eight million, seven hundred sixteen thousand, four hundred two".