866540823338422 has 8 divisors (see below), whose sum is σ = 1299811836695400. Its totient is φ = 433270211106624.

The previous prime is 866540823338419. The next prime is 866540823338459. The reversal of 866540823338422 is 224833328045668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94821147 + ... + 103557382.

It is an arithmetic number, because the mean of its divisors is an integer number (162476479586925).

Almost surely, 2^{866540823338422} is an apocalyptic number.

866540823338422 is a deficient number, since it is larger than the sum of its proper divisors (433271013356978).

866540823338422 is a wasteful number, since it uses less digits than its factorization.

866540823338422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200562590.

The product of its (nonzero) digits is 318504960, while the sum is 64.

The spelling of 866540823338422 in words is "eight hundred sixty-six trillion, five hundred forty billion, eight hundred twenty-three million, three hundred thirty-eight thousand, four hundred twenty-two".