655467081984 has 288 divisors, whose sum is σ = 2277204048000. Its totient is φ = 183347159040.

The previous prime is 655467081977. The next prime is 655467082003. The reversal of 655467081984 is 489180764556.

655467081984 is a `hidden beast` number, since 6 + 5 + 5 + 467 + 0 + 81 + 98 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656842 + ... + 1319990.

It is an arithmetic number, because the mean of its divisors is an integer number (7906958500).

Almost surely, 2^655467081984 is an apocalyptic number.

655467081984 is a gapful number since it is divisible by the number (64) 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 655467081984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138602024000).

655467081984 is an abundant number, since it is smaller than the sum of its proper divisors (1621736966016).

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

655467081984 is a wasteful number, since it uses less digits than its factorization.

655467081984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663198 (or 663178 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 63.

The spelling of 655467081984 in words is "six hundred fifty-five billion, four hundred sixty-seven million, eighty-one thousand, nine hundred eighty-four".