216280656107 has 4 divisors (see below), whose sum is σ = 216288268896. Its totient is φ = 216273043320.

The previous prime is 216280656043. The next prime is 216280656131. The reversal of 216280656107 is 701656082612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216280656107 - 2⁶ = 216280656043 is a prime.

It is a super-3 number, since 3×216280656107³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216280656307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3763619 + ... + 3820652.

It is an arithmetic number, because the mean of its divisors is an integer number (54072067224).

Almost surely, 2^216280656107 is an apocalyptic number.

216280656107 is a deficient number, since it is larger than the sum of its proper divisors (7612789).

216280656107 is an equidigital number, since it uses as much as digits as its factorization.

216280656107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7612788.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 216280656107 in words is "two hundred sixteen billion, two hundred eighty million, six hundred fifty-six thousand, one hundred seven".