220041645 has 8 divisors (see below), whose sum is σ = 352066656. Its totient is φ = 117355536.

The previous prime is 220041631. The next prime is 220041649. The reversal of 220041645 is 546140022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220041645 - 2¹⁶ = 219976109 is a prime.

It is a super-3 number, since 3×220041645³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220041649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7334707 + ... + 7334736.

It is an arithmetic number, because the mean of its divisors is an integer number (44008332).

Almost surely, 2^220041645 is an apocalyptic number.

It is an amenable number.

220041645 is a deficient number, since it is larger than the sum of its proper divisors (132025011).

220041645 is a wasteful number, since it uses less digits than its factorization.

220041645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14669451.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 220041645 is about 14833.8007604255. The cubic root of 220041645 is about 603.7191626376.

Adding to 220041645 its reverse (546140022), we get a palindrome (766181667).

The spelling of 220041645 in words is "two hundred twenty million, forty-one thousand, six hundred forty-five".