66159830630412 has 144 divisors (see below), whose sum is σ = 174603434084352. Its totient is φ = 21098991870720.

The previous prime is 66159830630293. The next prime is 66159830630419. The reversal of 66159830630412 is 21403603895166.

66159830630412 is a `hidden beast` number, since 6 + 6 + 1 + 598 + 3 + 0 + 6 + 3 + 0 + 41 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (66159830630419) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57584808 + ... + 58722480.

It is an arithmetic number, because the mean of its divisors is an integer number (1212523847808).

Almost surely, 2^{66159830630412} is an apocalyptic number.

66159830630412 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66159830630412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87301717042176).

66159830630412 is an abundant number, since it is smaller than the sum of its proper divisors (108443603453940).

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

66159830630412 is a wasteful number, since it uses less digits than its factorization.

66159830630412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138308 (or 1138303 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 66159830630412 in words is "sixty-six trillion, one hundred fifty-nine billion, eight hundred thirty million, six hundred thirty thousand, four hundred twelve".