220965249576979 has 2 divisors, whose sum is σ = 220965249576980. Its totient is φ = 220965249576978.

The previous prime is 220965249576959. The next prime is 220965249577043. The reversal of 220965249576979 is 979675942569022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220965249576979 - 2¹⁵ = 220965249544211 is a prime.

It is not a weakly prime, because it can be changed into another prime (220965249576959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110482624788489 + 110482624788490.

It is an arithmetic number, because the mean of its divisors is an integer number (110482624788490).

Almost surely, 2^{220965249576979} is an apocalyptic number.

220965249576979 is a deficient number, since it is larger than the sum of its proper divisors (1).

220965249576979 is an equidigital number, since it uses as much as digits as its factorization.

220965249576979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9258883200, while the sum is 82.

The spelling of 220965249576979 in words is "two hundred twenty trillion, nine hundred sixty-five billion, two hundred forty-nine million, five hundred seventy-six thousand, nine hundred seventy-nine".