220256606 has 4 divisors (see below), whose sum is σ = 330384912. Its totient is φ = 110128302.

The previous prime is 220256599. The next prime is 220256657. The reversal of 220256606 is 606652022.

220256606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 606652022 = 2 ⋅303326011.

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, 55064150 + ... + 55064153.

It is an arithmetic number, because the mean of its divisors is an integer number (82596228).

Almost surely, 2^220256606 is an apocalyptic number.

220256606 is a deficient number, since it is larger than the sum of its proper divisors (110128306).

220256606 is a wasteful number, since it uses less digits than its factorization.

220256606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110128305.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 220256606 is about 14841.0446397819. The cubic root of 220256606 is about 603.9156918567.

The spelling of 220256606 in words is "two hundred twenty million, two hundred fifty-six thousand, six hundred six".