66467793600 has 252 divisors, whose sum is σ = 254415428176. Its totient is φ = 16361256960.

The previous prime is 66467793593. The next prime is 66467793641. The reversal of 66467793600 is 639776466.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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 35 ways as a sum of consecutive naturals, for example, 9669 + ... + 364731.

Almost surely, 2^66467793600 is an apocalyptic number.

66467793600 is a gapful number since it is divisible by the number (60) 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 66467793600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127207714088).

66467793600 is an abundant number, since it is smaller than the sum of its proper divisors (187947634576).

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

66467793600 is a wasteful number, since it uses less digits than its factorization.

66467793600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355104 (or 355086 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 54.

The spelling of 66467793600 in words is "sixty-six billion, four hundred sixty-seven million, seven hundred ninety-three thousand, six hundred".