220500878929987 has 2 divisors, whose sum is σ = 220500878929988. Its totient is φ = 220500878929986.

The previous prime is 220500878929943. The next prime is 220500878929993. The reversal of 220500878929987 is 789929878005022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220500878929987 - 2¹⁵ = 220500878897219 is a prime.

It is not a weakly prime, because it can be changed into another prime (220500878929927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110250439464993 + 110250439464994.

It is an arithmetic number, because the mean of its divisors is an integer number (110250439464994).

Almost surely, 2^{220500878929987} is an apocalyptic number.

220500878929987 is a deficient number, since it is larger than the sum of its proper divisors (1).

220500878929987 is an equidigital number, since it uses as much as digits as its factorization.

220500878929987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 731566080, while the sum is 76.

The spelling of 220500878929987 in words is "two hundred twenty trillion, five hundred billion, eight hundred seventy-eight million, nine hundred twenty-nine thousand, nine hundred eighty-seven".