220648351 has 32 divisors (see below), whose sum is σ = 284663808. Its totient is φ = 166047840.

The previous prime is 220648301. The next prime is 220648367. The reversal of 220648351 is 153846022.

It is not a de Polignac number, because 220648351 - 2¹³ = 220640159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220648301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340710 + ... + 341356.

It is an arithmetic number, because the mean of its divisors is an integer number (8895744).

Almost surely, 2^220648351 is an apocalyptic number.

220648351 is a deficient number, since it is larger than the sum of its proper divisors (64015457).

220648351 is a wasteful number, since it uses less digits than its factorization.

220648351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 220648351 is about 14854.2368030135. The cubic root of 220648351 is about 604.2735181752.

The spelling of 220648351 in words is "two hundred twenty million, six hundred forty-eight thousand, three hundred fifty-one".