220108557 has 8 divisors (see below), whose sum is σ = 298289440. Its totient is φ = 144333360.

The previous prime is 220108547. The next prime is 220108589. The reversal of 220108557 is 755801022.

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

It is not a de Polignac number, because 220108557 - 2⁷ = 220108429 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 (220108547) 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, 601207 + ... + 601572.

It is an arithmetic number, because the mean of its divisors is an integer number (37286180).

Almost surely, 2^220108557 is an apocalyptic number.

It is an amenable number.

220108557 is a deficient number, since it is larger than the sum of its proper divisors (78180883).

220108557 is a wasteful number, since it uses less digits than its factorization.

220108557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202843.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 220108557 is about 14836.0559785949. The cubic root of 220108557 is about 603.7803509983.

Adding to 220108557 its reverse (755801022), we get a palindrome (975909579).

The spelling of 220108557 in words is "two hundred twenty million, one hundred eight thousand, five hundred fifty-seven".