655804416 has 48 divisors (see below), whose sum is σ = 1748401200. Its totient is φ = 218599424.

The previous prime is 655804403. The next prime is 655804423. The reversal of 655804416 is 614408556.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47226 + ... + 59513.

It is an arithmetic number, because the mean of its divisors is an integer number (36425025).

Almost surely, 2^655804416 is an apocalyptic number.

It is an amenable number.

655804416 is an abundant number, since it is smaller than the sum of its proper divisors (1092596784).

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

655804416 is a wasteful number, since it uses less digits than its factorization.

655804416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106764 (or 106744 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 655804416 is about 25608.6785289675. The cubic root of 655804416 is about 868.8099358197.

It can be divided in two parts, 65580 and 4416, that added together give a palindrome (69996).

The spelling of 655804416 in words is "six hundred fifty-five million, eight hundred four thousand, four hundred sixteen".