660019478148 has 216 divisors, whose sum is σ = 1759779665280. Its totient is φ = 208524153600.

The previous prime is 660019478119. The next prime is 660019478161. The reversal of 660019478148 is 841874910066.

660019478148 is a `hidden beast` number, since 6 + 600 + 19 + 4 + 7 + 8 + 14 + 8 = 666.

It is a super-3 number, since 3×660019478148³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 660019478094 and 660019478103.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 410203968 + ... + 410205576.

It is an arithmetic number, because the mean of its divisors is an integer number (8147128080).

Almost surely, 2^660019478148 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 660019478148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879889832640).

660019478148 is an abundant number, since it is smaller than the sum of its proper divisors (1099760187132).

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

660019478148 is a wasteful number, since it uses less digits than its factorization.

660019478148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919 (or 1883 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 660019478148 in words is "six hundred sixty billion, nineteen million, four hundred seventy-eight thousand, one hundred forty-eight".