220515696 has 120 divisors (see below), whose sum is σ = 655374720. Its totient is φ = 71741376.

The previous prime is 220515689. The next prime is 220515751. The reversal of 220515696 is 696515022.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 220515696.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166525 + ... + 167843.

It is an arithmetic number, because the mean of its divisors is an integer number (5461456).

Almost surely, 2^220515696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220515696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327687360).

220515696 is an abundant number, since it is smaller than the sum of its proper divisors (434859024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220515696 is a wasteful number, since it uses less digits than its factorization.

220515696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 220515696 is about 14849.7709073238. The cubic root of 220515696 is about 604.1523963801.

The spelling of 220515696 in words is "two hundred twenty million, five hundred fifteen thousand, six hundred ninety-six".