216098278651 has 4 divisors (see below), whose sum is σ = 219760961400. Its totient is φ = 212435595904.

The previous prime is 216098278639. The next prime is 216098278673. The reversal of 216098278651 is 156872890612.

It is a happy number.

216098278651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 216098278651 - 2¹³ = 216098270459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216098278592 and 216098278601.

It is not an unprimeable number, because it can be changed into a prime (216098279651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831341286 + ... + 1831341403.

It is an arithmetic number, because the mean of its divisors is an integer number (54940240350).

Almost surely, 2^216098278651 is an apocalyptic number.

216098278651 is a deficient number, since it is larger than the sum of its proper divisors (3662682749).

216098278651 is an equidigital number, since it uses as much as digits as its factorization.

216098278651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3662682748.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 216098278651 in words is "two hundred sixteen billion, ninety-eight million, two hundred seventy-eight thousand, six hundred fifty-one".