66014160520 has 256 divisors, whose sum is σ = 187534725120. Its totient is φ = 20316441600.

The previous prime is 66014160503. The next prime is 66014160559. The reversal of 66014160520 is 2506141066.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 102030837 + ... + 102031483.

It is an arithmetic number, because the mean of its divisors is an integer number (732557520).

Almost surely, 2^66014160520 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 66014160520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93767362560).

66014160520 is an abundant number, since it is smaller than the sum of its proper divisors (121520564600).

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

66014160520 is a wasteful number, since it uses less digits than its factorization.

66014160520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 66014160520 in words is "sixty-six billion, fourteen million, one hundred sixty thousand, five hundred twenty".