655391596032 has 1200 divisors, whose sum is σ = 2277052652160. Its totient is φ = 186695663616.

The previous prime is 655391595983. The next prime is 655391596033. The reversal of 655391596032 is 230695193556.

655391596032 is a `hidden beast` number, since 6 + 5 + 539 + 15 + 9 + 60 + 32 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 655391596032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655391596033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 15241665003 + ... + 15241665045.

Almost surely, 2^655391596032 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 655391596032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138526326080).

655391596032 is an abundant number, since it is smaller than the sum of its proper divisors (1621661056128).

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

655391596032 is a wasteful number, since it uses less digits than its factorization.

655391596032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 6561000, while the sum is 54.

The spelling of 655391596032 in words is "six hundred fifty-five billion, three hundred ninety-one million, five hundred ninety-six thousand, thirty-two".