220888915879 has 2 divisors, whose sum is σ = 220888915880. Its totient is φ = 220888915878.

The previous prime is 220888915817. The next prime is 220888915883. The reversal of 220888915879 is 978519888022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220888915879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220888915889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110444457939 + 110444457940.

It is an arithmetic number, because the mean of its divisors is an integer number (110444457940).

Almost surely, 2^220888915879 is an apocalyptic number.

220888915879 is a deficient number, since it is larger than the sum of its proper divisors (1).

220888915879 is an equidigital number, since it uses as much as digits as its factorization.

220888915879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46448640, while the sum is 67.

The spelling of 220888915879 in words is "two hundred twenty billion, eight hundred eighty-eight million, nine hundred fifteen thousand, eight hundred seventy-nine".