655417660 has 48 divisors (see below), whose sum is σ = 1520721216. Its totient is φ = 236014592.

The previous prime is 655417657. The next prime is 655417687. The reversal of 655417660 is 66714556.

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, 34087 + ... + 49726.

It is an arithmetic number, because the mean of its divisors is an integer number (31681692).

Almost surely, 2^655417660 is an apocalyptic number.

It is an amenable number.

655417660 is an abundant number, since it is smaller than the sum of its proper divisors (865303556).

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

655417660 is a wasteful number, since it uses less digits than its factorization.

655417660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83862 (or 83860 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 655417660 is about 25601.1261471053. The cubic root of 655417660 is about 868.6391107365.

The spelling of 655417660 in words is "six hundred fifty-five million, four hundred seventeen thousand, six hundred sixty".