66015246452112 has 160 divisors (see below), whose sum is σ = 194435026790400. Its totient is φ = 21433463872128.

The previous prime is 66015246452059. The next prime is 66015246452167. The reversal of 66015246452112 is 21125464251066.

66015246452112 is a `hidden beast` number, since 6 + 6 + 0 + 1 + 52 + 4 + 64 + 521 + 12 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1719213 + ... + 11618355.

It is an arithmetic number, because the mean of its divisors is an integer number (1215218917440).

Almost surely, 2^{66015246452112} 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 66015246452112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97217513395200).

66015246452112 is an abundant number, since it is smaller than the sum of its proper divisors (128419780338288).

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

66015246452112 is a wasteful number, since it uses less digits than its factorization.

66015246452112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9899562 (or 9899550 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 66015246452112 in words is "sixty-six trillion, fifteen billion, two hundred forty-six million, four hundred fifty-two thousand, one hundred twelve".