220741615 has 16 divisors (see below), whose sum is σ = 271071936. Its totient is φ = 172512000.

The previous prime is 220741613. The next prime is 220741643. The reversal of 220741615 is 516147022.

It is not a de Polignac number, because 220741615 - 2¹ = 220741613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220741613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43659 + ... + 48451.

It is an arithmetic number, because the mean of its divisors is an integer number (16941996).

Almost surely, 2^220741615 is an apocalyptic number.

220741615 is a deficient number, since it is larger than the sum of its proper divisors (50330321).

220741615 is a wasteful number, since it uses less digits than its factorization.

220741615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 220741615 is about 14857.3757777072. The cubic root of 220741615 is about 604.3586446169.

Adding to 220741615 its reverse (516147022), we get a palindrome (736888637).

The spelling of 220741615 in words is "two hundred twenty million, seven hundred forty-one thousand, six hundred fifteen".