866653200000001 has 8 divisors (see below), whose sum is σ = 866973981739104. Its totient is φ = 866332420786560.

The previous prime is 866653199999971. The next prime is 866653200000031. The reversal of 866653200000001 is 100000002356668.

It is an interprime number because it is at equal distance from previous prime (866653199999971) and next prime (866653200000031).

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

It is a cyclic number.

It is not a de Polignac number, because 866653200000001 - 2²⁹ = 866652663129089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 866653199999897 and 866653199999906.

It is not an unprimeable number, because it can be changed into a prime (866653200000031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949585050 + ... + 950497276.

It is an arithmetic number, because the mean of its divisors is an integer number (108371747717388).

Almost surely, 2^{866653200000001} is an apocalyptic number.

It is an amenable number.

866653200000001 is a deficient number, since it is larger than the sum of its proper divisors (320781739103).

866653200000001 is a wasteful number, since it uses less digits than its factorization.

866653200000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262831.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 866653200000001 its reverse (100000002356668), we get a palindrome (966653202356669).

The spelling of 866653200000001 in words is "eight hundred sixty-six trillion, six hundred fifty-three billion, two hundred million, one", and thus it is an aban number.