220959516 has 12 divisors (see below), whose sum is σ = 515572232. Its totient is φ = 73653168.

The previous prime is 220959469. The next prime is 220959517. The reversal of 220959516 is 615959022.

220959516 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220959517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9206635 + ... + 9206658.

Almost surely, 2^220959516 is an apocalyptic number.

It is an amenable number.

220959516 is an abundant number, since it is smaller than the sum of its proper divisors (294612716).

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

220959516 is a wasteful number, since it uses less digits than its factorization.

220959516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18413300 (or 18413298 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 220959516 is about 14864.7070606857. The cubic root of 220959516 is about 604.5574397026.

The spelling of 220959516 in words is "two hundred twenty million, nine hundred fifty-nine thousand, five hundred sixteen".