220556416461 has 8 divisors (see below), whose sum is σ = 295219484544. Its totient is φ = 146465479680.

The previous prime is 220556416391. The next prime is 220556416463. The reversal of 220556416461 is 164614655022.

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

It is not a de Polignac number, because 220556416461 - 2¹³ = 220556408269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220556416463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143031925 + ... + 143033466.

It is an arithmetic number, because the mean of its divisors is an integer number (36902435568).

Almost surely, 2^220556416461 is an apocalyptic number.

It is an amenable number.

220556416461 is a deficient number, since it is larger than the sum of its proper divisors (74663068083).

220556416461 is a wasteful number, since it uses less digits than its factorization.

220556416461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286065651.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 220556416461 in words is "two hundred twenty billion, five hundred fifty-six million, four hundred sixteen thousand, four hundred sixty-one".