66673085364 has 96 divisors (see below), whose sum is σ = 182029008000. Its totient is φ = 21045961728.

The previous prime is 66673085363. The next prime is 66673085371. The reversal of 66673085364 is 46358037666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 66673085364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66673085363) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 6497662 + ... + 6507914.

It is an arithmetic number, because the mean of its divisors is an integer number (1896135500).

Almost surely, 2^66673085364 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 66673085364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91014504000).

66673085364 is an abundant number, since it is smaller than the sum of its proper divisors (115355922636).

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

66673085364 is a wasteful number, since it uses less digits than its factorization.

66673085364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13454 (or 13446 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 66673085364 in words is "sixty-six billion, six hundred seventy-three million, eighty-five thousand, three hundred sixty-four".