220655606545 has 8 divisors (see below), whose sum is σ = 288858248640. Its totient is φ = 160476804720.

The previous prime is 220655606527. The next prime is 220655606597. The reversal of 220655606545 is 545606556022.

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

It is not a de Polignac number, because 220655606545 - 2¹⁷ = 220655475473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220655606495 and 220655606504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2005960005 + ... + 2005960114.

It is an arithmetic number, because the mean of its divisors is an integer number (36107281080).

Almost surely, 2^220655606545 is an apocalyptic number.

It is an amenable number.

220655606545 is a deficient number, since it is larger than the sum of its proper divisors (68202642095).

220655606545 is a wasteful number, since it uses less digits than its factorization.

220655606545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011920135.

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 220655606545 in words is "two hundred twenty billion, six hundred fifty-five million, six hundred six thousand, five hundred forty-five".