660460741812 has 96 divisors (see below), whose sum is σ = 1726981724160. Its totient is φ = 218269789920.

The previous prime is 660460741781. The next prime is 660460741873. The reversal of 660460741812 is 218147064066.

660460741812 is a `hidden beast` number, since 6 + 6 + 0 + 460 + 7 + 4 + 181 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15584083 + ... + 15626405.

It is an arithmetic number, because the mean of its divisors is an integer number (17989392960).

Almost surely, 2^660460741812 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 660460741812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (863490862080).

660460741812 is an abundant number, since it is smaller than the sum of its proper divisors (1066520982348).

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

660460741812 is a wasteful number, since it uses less digits than its factorization.

660460741812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43570 (or 43562 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 660460741812 in words is "six hundred sixty billion, four hundred sixty million, seven hundred forty-one thousand, eight hundred twelve".