866475510880406 has 64 divisors (see below), whose sum is σ = 1534218698428416. Its totient is φ = 359153003980800.

The previous prime is 866475510880403. The next prime is 866475510880423. The reversal of 866475510880406 is 604088015574668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866475510880403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5019090266 + ... + 5019262898.

It is an arithmetic number, because the mean of its divisors is an integer number (23972167162944).

Almost surely, 2^{866475510880406} is an apocalyptic number.

866475510880406 is a deficient number, since it is larger than the sum of its proper divisors (667743187548010).

866475510880406 is a wasteful number, since it uses less digits than its factorization.

866475510880406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179517.

The product of its (nonzero) digits is 309657600, while the sum is 68.

The spelling of 866475510880406 in words is "eight hundred sixty-six trillion, four hundred seventy-five billion, five hundred ten million, eight hundred eighty thousand, four hundred six".