220633381669 has 4 divisors (see below), whose sum is σ = 220643235820. Its totient is φ = 220623527520.

The previous prime is 220633381667. The next prime is 220633381741. The reversal of 220633381669 is 966183336022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5694513444 + 214938868225 = 75462^2 + 463615^2 .

It is a cyclic number.

It is not a de Polignac number, because 220633381669 - 2¹ = 220633381667 is a prime.

It is a super-2 number, since 2×220633381669² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220633381667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4893414 + ... + 4938295.

It is an arithmetic number, because the mean of its divisors is an integer number (55160808955).

Almost surely, 2^220633381669 is an apocalyptic number.

It is an amenable number.

220633381669 is a deficient number, since it is larger than the sum of its proper divisors (9854151).

220633381669 is an equidigital number, since it uses as much as digits as its factorization.

220633381669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9854150.

The product of its (nonzero) digits is 1679616, while the sum is 49.

The spelling of 220633381669 in words is "two hundred twenty billion, six hundred thirty-three million, three hundred eighty-one thousand, six hundred sixty-nine".