66130443243144 has 320 divisors, whose sum is σ = 223801958160000. Its totient is φ = 17821798474752.

The previous prime is 66130443243133. The next prime is 66130443243253. The reversal of 66130443243144 is 44134234403166.

66130443243144 is a `hidden beast` number, since 6 + 6 + 1 + 3 + 0 + 4 + 4 + 324 + 314 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 66130443243144.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 18060772 + ... + 21411500.

It is an arithmetic number, because the mean of its divisors is an integer number (699381119250).

Almost surely, 2^{66130443243144} 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 66130443243144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111900979080000).

66130443243144 is an abundant number, since it is smaller than the sum of its proper divisors (157671514916856).

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

66130443243144 is a wasteful number, since it uses less digits than its factorization.

66130443243144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351002 (or 3350989 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 45.

The spelling of 66130443243144 in words is "sixty-six trillion, one hundred thirty billion, four hundred forty-three million, two hundred forty-three thousand, one hundred forty-four".