655563421124532 has 384 divisors, whose sum is σ = 1817861248949760. Its totient is φ = 203589614592000.

The previous prime is 655563421124497. The next prime is 655563421124543. The reversal of 655563421124532 is 235421124365556.

It is a happy number.

655563421124532 is a `hidden beast` number, since 6 + 5 + 5 + 5 + 63 + 4 + 21 + 1 + 24 + 532 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 98418165282 + ... + 98418171942.

It is an arithmetic number, because the mean of its divisors is an integer number (4734013669140).

Almost surely, 2^{655563421124532} 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 655563421124532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908930624474880).

655563421124532 is an abundant number, since it is smaller than the sum of its proper divisors (1162297827825228).

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

655563421124532 is a wasteful number, since it uses less digits than its factorization.

655563421124532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080 (or 8072 counting only the distinct ones).

The product of its digits is 25920000, while the sum is 54.

The spelling of 655563421124532 in words is "six hundred fifty-five trillion, five hundred sixty-three billion, four hundred twenty-one million, one hundred twenty-four thousand, five hundred thirty-two".