220624204639 has 2 divisors, whose sum is σ = 220624204640. Its totient is φ = 220624204638.

The previous prime is 220624204609. The next prime is 220624204673. The reversal of 220624204639 is 936402426022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220624204639 - 2¹⁹ = 220623680351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220624204609) 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, 110312102319 + 110312102320.

It is an arithmetic number, because the mean of its divisors is an integer number (110312102320).

Almost surely, 2^220624204639 is an apocalyptic number.

220624204639 is a deficient number, since it is larger than the sum of its proper divisors (1).

220624204639 is an equidigital number, since it uses as much as digits as its factorization.

220624204639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 220624204639 in words is "two hundred twenty billion, six hundred twenty-four million, two hundred four thousand, six hundred thirty-nine".