655716072 has 64 divisors (see below), whose sum is σ = 1836676800. Its totient is φ = 193328640.

The previous prime is 655716043. The next prime is 655716077. The reversal of 655716072 is 270617556.

It is a self number, because there is not a number n which added to its sum of digits gives 655716072.

It is not an unprimeable number, because it can be changed into a prime (655716077) 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, 23797 + ... + 43332.

It is an arithmetic number, because the mean of its divisors is an integer number (28698075).

Almost surely, 2^655716072 is an apocalyptic number.

It is an amenable number.

655716072 is an abundant number, since it is smaller than the sum of its proper divisors (1180960728).

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

655716072 is a wasteful number, since it uses less digits than its factorization.

655716072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67186 (or 67182 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 655716072 is about 25606.9535868678. The cubic root of 655716072 is about 868.7709213463.

The spelling of 655716072 in words is "six hundred fifty-five million, seven hundred sixteen thousand, seventy-two".