220617135045 has 24 divisors (see below), whose sum is σ = 388671941112. Its totient is φ = 115733577600.

The previous prime is 220617135023. The next prime is 220617135083. The reversal of 220617135045 is 540531716022.

220617135045 is a `hidden beast` number, since 2 + 2 + 0 + 617 + 1 + 35 + 0 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4846665924 + 215770469121 = 69618^2 + 464511^2 .

It is not a de Polignac number, because 220617135045 - 2¹⁰ = 220617134021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40182526 + ... + 40188015.

It is an arithmetic number, because the mean of its divisors is an integer number (16194664213).

Almost surely, 2^220617135045 is an apocalyptic number.

It is an amenable number.

220617135045 is a deficient number, since it is larger than the sum of its proper divisors (168054806067).

220617135045 is a wasteful number, since it uses less digits than its factorization.

220617135045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80370613 (or 80370610 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 220617135045 in words is "two hundred twenty billion, six hundred seventeen million, one hundred thirty-five thousand, forty-five".