220980815 has 8 divisors (see below), whose sum is σ = 289284048. Its totient is φ = 160713280.

The previous prime is 220980763. The next prime is 220980821. The reversal of 220980815 is 518089022.

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

It is not a de Polignac number, because 220980815 - 2⁶ = 220980751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2008862 + ... + 2008971.

It is an arithmetic number, because the mean of its divisors is an integer number (36160506).

Almost surely, 2^220980815 is an apocalyptic number.

220980815 is a deficient number, since it is larger than the sum of its proper divisors (68303233).

220980815 is a wasteful number, since it uses less digits than its factorization.

220980815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017849.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 220980815 is about 14865.4234719365. The cubic root of 220980815 is about 604.5768641586.

The spelling of 220980815 in words is "two hundred twenty million, nine hundred eighty thousand, eight hundred fifteen".