660948000 has 96 divisors (see below), whose sum is σ = 2165304960. Its totient is φ = 176249600.

The previous prime is 660947977. The next prime is 660948011. The reversal of 660948000 is 849066.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15540 + ... + 39539.

It is an arithmetic number, because the mean of its divisors is an integer number (22555260).

Almost surely, 2^660948000 is an apocalyptic number.

660948000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

660948000 is an abundant number, since it is smaller than the sum of its proper divisors (1504356960).

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

660948000 is a wasteful number, since it uses less digits than its factorization.

660948000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55107 (or 55089 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 660948000 is about 25708.9089616810. The cubic root of 660948000 is about 871.0754305538.

The spelling of 660948000 in words is "six hundred sixty million, nine hundred forty-eight thousand".