220005566611111 has 8 divisors (see below), whose sum is σ = 228067105276800. Its totient is φ = 211975703933280.

The previous prime is 220005566611091. The next prime is 220005566611147. The reversal of 220005566611111 is 111116665500022.

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

It is a cyclic number.

It is not a de Polignac number, because 220005566611111 - 2¹³ = 220005566602919 is a prime.

It is a super-2 number, since 2×220005566611111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220005566611211) 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, 7918982820 + ... + 7919010601.

It is an arithmetic number, because the mean of its divisors is an integer number (28508388159600).

Almost surely, 2^{220005566611111} is an apocalyptic number.

220005566611111 is the 6633334-th centered decagonal number.

220005566611111 is a deficient number, since it is larger than the sum of its proper divisors (8061538665689).

220005566611111 is a wasteful number, since it uses less digits than its factorization.

220005566611111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15837993929.

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 220005566611111 in words is "two hundred twenty trillion, five billion, five hundred sixty-six million, six hundred eleven thousand, one hundred eleven".