66473484360 has 128 divisors (see below), whose sum is σ = 210073651200. Its totient is φ = 16780711680.

The previous prime is 66473484359. The next prime is 66473484367. The reversal of 66473484360 is 6348437466.

It is a super-3 number, since 3×66473484360³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (66473484367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3243345 + ... + 3263775.

It is an arithmetic number, because the mean of its divisors is an integer number (1641200400).

Almost surely, 2^66473484360 is an apocalyptic number.

66473484360 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 66473484360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105036825600).

66473484360 is an abundant number, since it is smaller than the sum of its proper divisors (143600166840).

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

66473484360 is a wasteful number, since it uses less digits than its factorization.

66473484360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21891 (or 21887 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 51.

The spelling of 66473484360 in words is "sixty-six billion, four hundred seventy-three million, four hundred eighty-four thousand, three hundred sixty".