655524425556 has 576 divisors, whose sum is σ = 2338362163200. Its totient is φ = 154488280320.

The previous prime is 655524425513. The next prime is 655524425557.

It is a happy number.

655524425556 is a `hidden beast` number, since 6 + 55 + 52 + 442 + 55 + 56 = 666.

655524425556 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655524425557) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 70157421 + ... + 70166763.

Almost surely, 2^655524425556 is an apocalyptic number.

655524425556 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 655524425556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169181081600).

655524425556 is an abundant number, since it is smaller than the sum of its proper divisors (1682837737644).

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

655524425556 is a wasteful number, since it uses less digits than its factorization.

655524425556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9457 (or 9438 counting only the distinct ones).

The product of its digits is 36000000, while the sum is 54.

The spelling of 655524425556 in words is "six hundred fifty-five billion, five hundred twenty-four million, four hundred twenty-five thousand, five hundred fifty-six".