66463520130 has 144 divisors (see below), whose sum is σ = 201123808704. Its totient is φ = 15183685440.

The previous prime is 66463520117. The next prime is 66463520131. The reversal of 66463520130 is 3102536466.

66463520130 is a `hidden beast` number, since 6 + 6 + 4 + 635 + 2 + 0 + 13 + 0 = 666.

66463520130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66463520131) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14069949 + ... + 14074671.

It is an arithmetic number, because the mean of its divisors is an integer number (1396693116).

Almost surely, 2^66463520130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66463520130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100561904352).

66463520130 is an abundant number, since it is smaller than the sum of its proper divisors (134660288574).

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

66463520130 is a wasteful number, since it uses less digits than its factorization.

66463520130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7941 (or 7931 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 66463520130 in words is "sixty-six billion, four hundred sixty-three million, five hundred twenty thousand, one hundred thirty".