220428444313 has 16 divisors (see below), whose sum is σ = 281211042816. Its totient is φ = 167767946640.

The previous prime is 220428444307. The next prime is 220428444319. The reversal of 220428444313 is 313444824022.

It is an interprime number because it is at equal distance from previous prime (220428444307) and next prime (220428444319).

It is not a de Polignac number, because 220428444313 - 2⁵ = 220428444281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220428444319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33283981 + ... + 33290602.

It is an arithmetic number, because the mean of its divisors is an integer number (17575690176).

Almost surely, 2^220428444313 is an apocalyptic number.

It is an amenable number.

220428444313 is a deficient number, since it is larger than the sum of its proper divisors (60782598503).

220428444313 is a wasteful number, since it uses less digits than its factorization.

220428444313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66574644.

The product of its (nonzero) digits is 147456, while the sum is 37.

The spelling of 220428444313 in words is "two hundred twenty billion, four hundred twenty-eight million, four hundred forty-four thousand, three hundred thirteen".