220066511156 has 6 divisors (see below), whose sum is σ = 385116394530. Its totient is φ = 110033255576.

The previous prime is 220066511149. The next prime is 220066511177. The reversal of 220066511156 is 651115660022.

It can be written as a sum of positive squares in only one way, i.e., 201676439056 + 18390072100 = 449084^2 + 135610^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27508313891 + ... + 27508313898.

It is an arithmetic number, because the mean of its divisors is an integer number (64186065755).

Almost surely, 2^220066511156 is an apocalyptic number.

It is an amenable number.

220066511156 is a deficient number, since it is larger than the sum of its proper divisors (165049883374).

220066511156 is a wasteful number, since it uses less digits than its factorization.

220066511156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55016627793 (or 55016627791 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 220066511156 in words is "two hundred twenty billion, sixty-six million, five hundred eleven thousand, one hundred fifty-six".