655468992 has 168 divisors, whose sum is σ = 2000615760. Its totient is φ = 204595200.

The previous prime is 655468987. The next prime is 655468997. The reversal of 655468992 is 299864556.

It is a happy number.

655468992 is a `hidden beast` number, since 6 + 5 + 546 + 8 + 9 + 92 = 666.

It is an interprime number because it is at equal distance from previous prime (655468987) and next prime (655468997).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655468997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1105048 + ... + 1105640.

Almost surely, 2^655468992 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 655468992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000307880).

655468992 is an abundant number, since it is smaller than the sum of its proper divisors (1345146768).

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

655468992 is a wasteful number, since it uses less digits than its factorization.

655468992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 718 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 655468992 is about 25602.1286615000. The cubic root of 655468992 is about 868.6617872787.

The spelling of 655468992 in words is "six hundred fifty-five million, four hundred sixty-eight thousand, nine hundred ninety-two".