655216716 has 96 divisors (see below), whose sum is σ = 1912135680. Its totient is φ = 169646400.

The previous prime is 655216699. The next prime is 655216717. The reversal of 655216716 is 617612556.

It is not an unprimeable number, because it can be changed into a prime (655216717) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 349261 + ... + 351131.

It is an arithmetic number, because the mean of its divisors is an integer number (19918080).

Almost surely, 2^655216716 is an apocalyptic number.

655216716 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655216716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956067840).

655216716 is an abundant number, since it is smaller than the sum of its proper divisors (1256918964).

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

655216716 is a wasteful number, since it uses less digits than its factorization.

655216716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275 (or 2273 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 655216716 is about 25597.2013313956. The cubic root of 655216716 is about 868.5503298622.

The spelling of 655216716 in words is "six hundred fifty-five million, two hundred sixteen thousand, seven hundred sixteen".