655461600 has 144 divisors (see below), whose sum is σ = 2174204592. Its totient is φ = 171458560.

The previous prime is 655461559. The next prime is 655461637. The reversal of 655461600 is 6164556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124624 + ... + 129776.

It is an arithmetic number, because the mean of its divisors is an integer number (15098643).

Almost surely, 2^655461600 is an apocalyptic number.

655461600 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 655461600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087102296).

655461600 is an abundant number, since it is smaller than the sum of its proper divisors (1518742992).

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

655461600 is a wasteful number, since it uses less digits than its factorization.

655461600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229 (or 5216 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 655461600 is about 25601.9842980969. The cubic root of 655461600 is about 868.6585218448.

The spelling of 655461600 in words is "six hundred fifty-five million, four hundred sixty-one thousand, six hundred".