216656713251130 has 8 divisors (see below), whose sum is σ = 389982083852052. Its totient is φ = 86662685300448.

The previous prime is 216656713251119. The next prime is 216656713251163. The reversal of 216656713251130 is 31152317656612.

It can be written as a sum of positive squares in 2 ways, for example, as 216126075305529 + 530637945601 = 14701227^2 + 728449^2 .

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

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, 10832835662547 + ... + 10832835662566.

Almost surely, 2^{216656713251130} is an apocalyptic number.

216656713251130 is a deficient number, since it is larger than the sum of its proper divisors (173325370600922).

216656713251130 is a wasteful number, since it uses less digits than its factorization.

216656713251130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21665671325120.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 216656713251130 in words is "two hundred sixteen trillion, six hundred fifty-six billion, seven hundred thirteen million, two hundred fifty-one thousand, one hundred thirty".