655715904480 has 1344 divisors, whose sum is σ = 2883748815360. Its totient is φ = 137137287168.

The previous prime is 655715904443. The next prime is 655715904497. The reversal of 655715904480 is 84409517556.

It is a happy number.

655715904480 is a `hidden beast` number, since 6 + 5 + 5 + 7 + 1 + 590 + 4 + 48 + 0 = 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 223 ways as a sum of consecutive naturals, for example, 1730120931 + ... + 1730121309.

It is an arithmetic number, because the mean of its divisors is an integer number (2145646440).

Almost surely, 2^655715904480 is an apocalyptic number.

655715904480 is a gapful number since it is divisible by the number (60) 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 655715904480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1441874407680).

655715904480 is an abundant number, since it is smaller than the sum of its proper divisors (2228032910880).

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

655715904480 is a wasteful number, since it uses less digits than its factorization.

655715904480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 655715904480 in words is "six hundred fifty-five billion, seven hundred fifteen million, nine hundred four thousand, four hundred eighty".