655200660 has 48 divisors (see below), whose sum is σ = 1842474816. Its totient is φ = 173966592.

The previous prime is 655200659. The next prime is 655200671. The reversal of 655200660 is 66002556.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9454 + ... + 37413.

It is an arithmetic number, because the mean of its divisors is an integer number (38384892).

Almost surely, 2^655200660 is an apocalyptic number.

655200660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655200660 is an abundant number, since it is smaller than the sum of its proper divisors (1187274156).

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

655200660 is a wasteful number, since it uses less digits than its factorization.

655200660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47112 (or 47110 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 655200660 is about 25596.8877014375. The cubic root of 655200660 is about 868.5432352334.

The spelling of 655200660 in words is "six hundred fifty-five million, two hundred thousand, six hundred sixty".