66030273792 has 864 divisors, whose sum is σ = 247556198400. Its totient is φ = 17244057600.

The previous prime is 66030273781. The next prime is 66030273851. The reversal of 66030273792 is 29737203066.

66030273792 is a `hidden beast` number, since 6 + 603 + 0 + 2 + 7 + 37 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 199487067 + ... + 199487397.

Almost surely, 2^66030273792 is an apocalyptic number.

66030273792 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 66030273792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123778099200).

66030273792 is an abundant number, since it is smaller than the sum of its proper divisors (181525924608).

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

66030273792 is a wasteful number, since it uses less digits than its factorization.

66030273792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 45.

The spelling of 66030273792 in words is "sixty-six billion, thirty million, two hundred seventy-three thousand, seven hundred ninety-two".