655380894960 has 480 divisors, whose sum is σ = 2598286699008. Its totient is φ = 151971240960.

The previous prime is 655380894943. The next prime is 655380894979. The reversal of 655380894960 is 69498083556.

655380894960 is a `hidden beast` number, since 6 + 5 + 538 + 0 + 8 + 9 + 4 + 96 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4851694 + ... + 4984946.

Almost surely, 2^655380894960 is an apocalyptic number.

655380894960 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 655380894960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299143349504).

655380894960 is an abundant number, since it is smaller than the sum of its proper divisors (1942905804048).

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

655380894960 is a wasteful number, since it uses less digits than its factorization.

655380894960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133315 (or 133297 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 655380894960 in words is "six hundred fifty-five billion, three hundred eighty million, eight hundred ninety-four thousand, nine hundred sixty".