220819889659 has 2 divisors, whose sum is σ = 220819889660. Its totient is φ = 220819889658.

The previous prime is 220819889639. The next prime is 220819889681. The reversal of 220819889659 is 956988918022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220819889659 - 2²³ = 220811501051 is a prime.

It is a super-2 number, since 2×220819889659² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220819889594 and 220819889603.

It is not a weakly prime, because it can be changed into another prime (220819889639) by changing a digit.

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 as a sum of consecutive naturals, namely, 110409944829 + 110409944830.

It is an arithmetic number, because the mean of its divisors is an integer number (110409944830).

Almost surely, 2^220819889659 is an apocalyptic number.

220819889659 is a deficient number, since it is larger than the sum of its proper divisors (1).

220819889659 is an equidigital number, since it uses as much as digits as its factorization.

220819889659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44789760, while the sum is 67.

The spelling of 220819889659 in words is "two hundred twenty billion, eight hundred nineteen million, eight hundred eighty-nine thousand, six hundred fifty-nine".