720220116 has 96 divisors (see below), whose sum is σ = 2114703360. Its totient is φ = 185328000.

The previous prime is 720220093. The next prime is 720220157. The reversal of 720220116 is 611022027.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 720220092 and 720220101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97141 + ... + 104291.

It is an arithmetic number, because the mean of its divisors is an integer number (22028160).

Almost surely, 2^720220116 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 720220116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1057351680).

720220116 is an abundant number, since it is smaller than the sum of its proper divisors (1394483244).

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

720220116 is a wasteful number, since it uses less digits than its factorization.

720220116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285 (or 7283 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 720220116 is about 26836.9170360532. The cubic root of 720220116 is about 896.3722760134.

The spelling of 720220116 in words is "seven hundred twenty million, two hundred twenty thousand, one hundred sixteen".