866802374201072 has 20 divisors (see below), whose sum is σ = 1733604748403136. Its totient is φ = 419420503645440.

The previous prime is 866802374201011. The next prime is 866802374201081. The reversal of 866802374201072 is 270102473208668.

866802374201072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

866802374201072 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 866802374200999 and 866802374201017.

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, 873792715433 + ... + 873792716424.

Almost surely, 2^{866802374201072} is an apocalyptic number.

It is an amenable number.

866802374201072 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866802374201072 is a wasteful number, since it uses less digits than its factorization.

866802374201072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747585431896 (or 1747585431890 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 56.

The spelling of 866802374201072 in words is "eight hundred sixty-six trillion, eight hundred two billion, three hundred seventy-four million, two hundred one thousand, seventy-two".