660473352000 has 3360 divisors, whose sum is σ = 3253205210112. Its totient is φ = 130636800000.

The previous prime is 660473351981. The next prime is 660473352047. The reversal of 660473352000 is 253374066.

660473352000 is a `hidden beast` number, since 6 + 60 + 4 + 73 + 3 + 520 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 10827431970 + ... + 10827432030.

Almost surely, 2^660473352000 is an apocalyptic number.

660473352000 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 660473352000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1626602605056).

660473352000 is an abundant number, since it is smaller than the sum of its proper divisors (2592731858112).

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

660473352000 is a wasteful number, since it uses less digits than its factorization.

660473352000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The spelling of 660473352000 in words is "six hundred sixty billion, four hundred seventy-three million, three hundred fifty-two thousand".