866130134766215 has 16 divisors (see below), whose sum is σ = 1134169935887520. Its totient is φ = 629731241742720.

The previous prime is 866130134766173. The next prime is 866130134766301. The reversal of 866130134766215 is 512667431031668.

It is not a de Polignac number, because 866130134766215 - 2¹⁸ = 866130134504071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2269601744 + ... + 2269983333.

It is an arithmetic number, because the mean of its divisors is an integer number (70885620992970).

Almost surely, 2^{866130134766215} is an apocalyptic number.

866130134766215 is a deficient number, since it is larger than the sum of its proper divisors (268039801121305).

866130134766215 is a wasteful number, since it uses less digits than its factorization.

866130134766215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539588562.

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 866130134766215 in words is "eight hundred sixty-six trillion, one hundred thirty billion, one hundred thirty-four million, seven hundred sixty-six thousand, two hundred fifteen".