655870229280 has 216 divisors, whose sum is σ = 2603570850972. Its totient is φ = 149913179136.

The previous prime is 655870229251. The next prime is 655870229293. The reversal of 655870229280 is 82922078556.

It is a happy number.

655870229280 is a `hidden beast` number, since 6 + 558 + 7 + 0 + 2 + 2 + 9 + 2 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 655847304336 + 22924944 = 809844^2 + 4788^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4577047 + ... + 4718166.

Almost surely, 2^655870229280 is an apocalyptic number.

655870229280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655870229280 is an abundant number, since it is smaller than the sum of its proper divisors (1947700621692).

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

655870229280 is a wasteful number, since it uses less digits than its factorization.

655870229280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9295248 (or 9295230 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 655870229280 in words is "six hundred fifty-five billion, eight hundred seventy million, two hundred twenty-nine thousand, two hundred eighty".