655532043120 has 160 divisors (see below), whose sum is σ = 2376782995200. Its totient is φ = 165608084736.

The previous prime is 655532043083. The next prime is 655532043121. The reversal of 655532043120 is 21340235556.

655532043120 is a `hidden beast` number, since 65 + 5 + 532 + 0 + 43 + 1 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655532043121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7945462 + ... + 8027541.

It is an arithmetic number, because the mean of its divisors is an integer number (14854893720).

Almost surely, 2^655532043120 is an apocalyptic number.

655532043120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655532043120 is an abundant number, since it is smaller than the sum of its proper divisors (1721250952080).

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

655532043120 is a wasteful number, since it uses less digits than its factorization.

655532043120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15973044 (or 15973032 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 655532043120 its reverse (21340235556), we get a palindrome (676872278676).

The spelling of 655532043120 in words is "six hundred fifty-five billion, five hundred thirty-two million, forty-three thousand, one hundred twenty".