220644883451 has 2 divisors, whose sum is σ = 220644883452. Its totient is φ = 220644883450.

The previous prime is 220644883441. The next prime is 220644883471. The reversal of 220644883451 is 154388446022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220644883451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220644883396 and 220644883405.

It is not a weakly prime, because it can be changed into another prime (220644883421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110322441725 + 110322441726.

It is an arithmetic number, because the mean of its divisors is an integer number (110322441726).

Almost surely, 2^220644883451 is an apocalyptic number.

220644883451 is a deficient number, since it is larger than the sum of its proper divisors (1).

220644883451 is an equidigital number, since it uses as much as digits as its factorization.

220644883451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1474560, while the sum is 47.

The spelling of 220644883451 in words is "two hundred twenty billion, six hundred forty-four million, eight hundred eighty-three thousand, four hundred fifty-one".