216696569645902 has 8 divisors (see below), whose sum is σ = 325045223560656. Its totient is φ = 108348161792352.

The previous prime is 216696569645867. The next prime is 216696569645921. The reversal of 216696569645902 is 209546965696612.

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

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 3 ways as a sum of consecutive naturals, for example, 59297658 + ... + 62845885.

It is an arithmetic number, because the mean of its divisors is an integer number (40630652945082).

Almost surely, 2^{216696569645902} is an apocalyptic number.

216696569645902 is a deficient number, since it is larger than the sum of its proper divisors (108348653914754).

216696569645902 is a wasteful number, since it uses less digits than its factorization.

216696569645902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123030602.

The product of its (nonzero) digits is 2267481600, while the sum is 76.

The spelling of 216696569645902 in words is "two hundred sixteen trillion, six hundred ninety-six billion, five hundred sixty-nine million, six hundred forty-five thousand, nine hundred two".