660148632 has 192 divisors, whose sum is σ = 2125337760. Its totient is φ = 182476800.

The previous prime is 660148609. The next prime is 660148681. The reversal of 660148632 is 236841066.

660148632 is a `hidden beast` number, since 6 + 6 + 0 + 14 + 8 + 632 = 666.

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 (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 998382 + ... + 999042.

Almost surely, 2^660148632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660148632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062668880).

660148632 is an abundant number, since it is smaller than the sum of its proper divisors (1465189128).

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

660148632 is a wasteful number, since it uses less digits than its factorization.

660148632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 660148632 is about 25693.3577408637. The cubic root of 660148632 is about 870.7241216634.

Adding to 660148632 its reverse (236841066), we get a palindrome (896989698).

The spelling of 660148632 in words is "six hundred sixty million, one hundred forty-eight thousand, six hundred thirty-two".