220134655 has 16 divisors (see below), whose sum is σ = 285554304. Its totient is φ = 161948160.

The previous prime is 220134653. The next prime is 220134659. The reversal of 220134655 is 556431022.

It is not a de Polignac number, because 220134655 - 2¹ = 220134653 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 (220134653) 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, 11367 + ... + 23863.

It is an arithmetic number, because the mean of its divisors is an integer number (17847144).

Almost surely, 2^220134655 is an apocalyptic number.

220134655 is a deficient number, since it is larger than the sum of its proper divisors (65419649).

220134655 is a wasteful number, since it uses less digits than its factorization.

220134655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12786.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 220134655 is about 14836.9354989499. The cubic root of 220134655 is about 603.8042132190.

Adding to 220134655 its reverse (556431022), we get a palindrome (776565677).

It can be divided in two parts, 2201 and 34655, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 220134655 in words is "two hundred twenty million, one hundred thirty-four thousand, six hundred fifty-five".