220451015 has 16 divisors (see below), whose sum is σ = 278989920. Its totient is φ = 166763520.

The previous prime is 220450999. The next prime is 220451017. The reversal of 220451015 is 510154022.

220451015 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 220451015 - 2⁴ = 220450999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220451017) 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, 56735 + ... + 60495.

It is an arithmetic number, because the mean of its divisors is an integer number (17436870).

Almost surely, 2^220451015 is an apocalyptic number.

220451015 is a deficient number, since it is larger than the sum of its proper divisors (58538905).

220451015 is a wasteful number, since it uses less digits than its factorization.

220451015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 220451015 is about 14847.5929025549. The cubic root of 220451015 is about 604.0933212165.

The spelling of 220451015 in words is "two hundred twenty million, four hundred fifty-one thousand, fifteen".