214501656866 has 64 divisors (see below), whose sum is σ = 387579033600. Its totient is φ = 88942644000.

The previous prime is 214501656851. The next prime is 214501656917. The reversal of 214501656866 is 668656105412.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51057566 + ... + 51061766.

It is an arithmetic number, because the mean of its divisors is an integer number (6055922400).

Almost surely, 2^214501656866 is an apocalyptic number.

214501656866 is a deficient number, since it is larger than the sum of its proper divisors (173077376734).

214501656866 is an frugal number, since it uses more digits than its factorization.

214501656866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4283 (or 4241 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 214501656866 in words is "two hundred fourteen billion, five hundred one million, six hundred fifty-six thousand, eight hundred sixty-six".