66624602112 has 300 divisors, whose sum is σ = 202554060016. Its totient is φ = 21817589760.

The previous prime is 66624602089. The next prime is 66624602123. The reversal of 66624602112 is 21120642666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 80952933 + ... + 80953755.

Almost surely, 2^66624602112 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 66624602112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101277030008).

66624602112 is an abundant number, since it is smaller than the sum of its proper divisors (135929457904).

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

66624602112 is an frugal number, since it uses more digits than its factorization.

66624602112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 66624602112 in words is "sixty-six billion, six hundred twenty-four million, six hundred two thousand, one hundred twelve".