220746555 has 12 divisors (see below), whose sum is σ = 382627440. Its totient is φ = 117731472.

The previous prime is 220746529. The next prime is 220746569. The reversal of 220746555 is 555647022.

220746555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220746555 - 2¹⁴ = 220730171 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2452695 + ... + 2452784.

It is an arithmetic number, because the mean of its divisors is an integer number (31885620).

Almost surely, 2^220746555 is an apocalyptic number.

220746555 is a deficient number, since it is larger than the sum of its proper divisors (161880885).

220746555 is a wasteful number, since it uses less digits than its factorization.

220746555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905490 (or 4905487 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 220746555 is about 14857.5420241708. The cubic root of 220746555 is about 604.3631529186.

The spelling of 220746555 in words is "two hundred twenty million, seven hundred forty-six thousand, five hundred fifty-five".