656480000 has 180 divisors, whose sum is σ = 1791120408. Its totient is φ = 238080000.

The previous prime is 656479981. The next prime is 656480081. The reversal of 656480000 is 84656.

It is a super-3 number, since 3×656480000³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1759814 + ... + 1760186.

Almost surely, 2^656480000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895560204).

656480000 is an abundant number, since it is smaller than the sum of its proper divisors (1134640408).

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

656480000 is an equidigital number, since it uses as much as digits as its factorization.

656480000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 656480000 is about 25621.8656619693. The cubic root of 656480000 is about 869.1081714116.

The spelling of 656480000 in words is "six hundred fifty-six million, four hundred eighty thousand".